Relevant bibliographies by topics / 316L stainless steel feedstock injection

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic '316L stainless steel feedstock injection'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "316L stainless steel feedstock injection"

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Hausnerova, Berenika, and Martin Novak. "Environmentally Efficient 316L Stainless Steel Feedstocks for Powder Injection Molding." Polymers 12, no. 6 (June 5, 2020): 1296. http://dx.doi.org/10.3390/polym12061296.

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In this study, environmentally convenient highly metal powder filled feedstocks intended for powder injection molding is presented. The composition of 60 vol % 316L stainless steel gas atomized powder feedstocks containing semicrystalline waxes: acrawax or carnauba wax and paraffin wax, combined with polyethylene glycol and modifier, was optimized to provide defect-free parts. Rheological as well as thermogravimetric analyses supported with scanning electron microscopy and metallography were employed to set up optimum conditions for molding, debinding and sintering. The performance of the novel feedstock was compared with currently available polyolefines-based materials, and results showed an efficiency enhancement due to the substantially lower (about 100 °C) mixing and molding temperatures as well as a reduction of debinding and sintering times at the simultaneous achievement of better mechanical properties in terms of elongation and tensile strength, in comparison to the mass production feedstock.
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Haw, Pei Li, Norhamidi Muhamad, and Hadi Murthadha. "The Characterization and Flow Behavior of 316L Stainless Steel Feedstock for Micro Metal Injection Molding (μMIM)." Applied Mechanics and Materials 44-47 (December 2010): 2872–76. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2872.

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The rheological behaviors of the Micro Metal Injection Molding feedstock are important for the stability of the feedstock during micro injection molding process and quality of the final micro-components. Homogeneous feedstocks are preferable for MIM process to ensure the dimensional consistency of molded components and prevent the defects of powder-binder separation or particle segregation. In this work, feedstocks with various formulations of 316L stainless steel and binder system were prepared by using Brabender Plastograph EC Plus mixer. The binder system comprises of palm stearin, polyethelene (PE) and stearic acid. In order to obtain the viscosity, activation energy, flow behavior and mold ability index, the rheological characterization of the feedstocks were investigated in numerous conditions by using Shimadzu 500-D capillary rheometer The study showed that all of the 316L stainless steel feedstocks are homogenous with pseudo-plastic behaviors.
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Aslam, Muhammad, Faiz Ahmad, Puteri Sri Melor Binti Megat Yusoff, Khurram Altaf, Mohd Afian Omar, H. P. S. Abdul Khalil, and M. Rafi Raza. "Investigation of Rheological Behavior of Low Pressure Injection Molded Stainless Steel Feedstocks." Advances in Materials Science and Engineering 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/5347150.

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The purpose of this research is to investigate the influence of different powder loadings of 316L stainless steel (SS) powders on rheological behavior of feedstocks required for low pressure powder injection molding (L-PIM) process. The main idea consists in development of various formulations by varying 316L SS powder contents in feedstocks and evaluating the temperature sensitivity of feedstock via flow behavior index and activation energy. For this purpose, the irregular shape, spherical shape, and combination of both shapes and sizes (bimodal approach) of 316L SS powders are compounded with wax based composite binder. Moreover, the influence of elemental nanosized boron (nB) addition (up to 1.5 wt.%) on rheological properties of irregular shape 316L SS powders is also evaluated using capillary rheometer method. It is observed that rheological parameters for solid powder loading of powder gas atomized (PGA) and bimodal powder P25/75 316L SS underwent sudden change from PGA-69 vol.% to PGA-72 vol.% and P25/75-67 vol.% to P25/75 316L SS 70 vol.%, respectively. Thus it is concluded that PGA-69 vol.% and P25/75-67 vol.% are optimal powder solid loadings corresponding to the lowest values of activation energies.
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Li, Haw Pei, and Norhamidi Muhamad. "Rheological Analysis of Microminiature Powder Injection Molding (μPIM) Feedstock." Applied Mechanics and Materials 52-54 (March 2011): 238–43. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.238.

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A rheological analysis has been performed to evaluate the characteristics and behaviors of Microminiature Powder Injection Molding (μPIM) feedstocks. The feedstocks comprised of 316L stainless steel powder and water-based binder components. Feedstocks formulations with powder loading of 59% to 63% were prepared and investigated. In these formulations, the binder system consists of 65% Polyethelena Glycol (PEG), 25% Polymethyl Methacrilate (PMMA) and 10% Cellulose Acetate Butyrate (CAB) based on the weight fraction. The influences of rheological behaviors such as flow activation energy (E), Power-Law exponent (n), viscosity (η) and temperature (T) of the SS316L/PEG/PMMA/CAB feedstocks are analyzed and discussed. Results show that all of the feedstocks exhibited the pseudo-plastic flow behavior. The homogenous feedstock at 61 vol. % demonstrated the most satisfactory rheological properties for μPIM with the lowest flow activation energy, Power-Law exponent, n < 1 and moderate viscosity values. It was chosen to perform the injection molding process. Micro components have been replicated successfully by using this selected feedstock.
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Mohamad Nor, N. H., Muhammad Hussain Ismail, Nur Atikah Abu Kasim, N. Muhamad, and M. A. Taib. "Characterization and Rheological Studies on Ready-Made Feedstock of Stainless Steel 316L in Metal Injection Molding (MIM) Process." Applied Mechanics and Materials 465-466 (December 2013): 709–14. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.709.

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Current trend for manufacturers associated to MIM industry try to enhance the feedstock in term of its characteristics, since it is the most crucial part of the MIM process. This paper covered the characterization and rheological studies on a ready-made feedstock of stainless steel 316L which is vital to determine the availability and suit the needs of many advanced applications. There are three different experiments involved which are Scanning Electron Microscope (SEM), Differential Scanning Calorimeter (DSC), Thermogravimetric (TGA) and Capillary Rheometer. Observation through SEM gives an insight of the bonding microstructure matrices of the feedstock and also determines the homogeneity of the feedstock. DSC testing defines the melting temperature of the 3 binders used which are 62.07°C for surfactant, 178.72°C for filler and 236.61°C for backbone binder. From TGA result, it showed that the total weight loss of feedstock was 39%. Throughout the capillary rheometer testing, the feedstocks viscosity was decreasing as the shear rate increasing. The feedstock exhibits pseudoplastic behaviour since its flow behaviour index was less than 1. It is founded that at the temperature of 190°C, the feedstock exhibits the best characteristics for injection.
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Barreiros, Fatima M., A. G. Martins, Mariana Matos, João M. G. Mascarenhas, and M. Teresa Vieira. "Preparing MIM Feedstocks for Bio-Applications Using an Agar-Based Binder." Materials Science Forum 587-588 (June 2008): 385–89. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.385.

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The present study aims to prepare feedstocks for MIM (Metal Injection Molding) where the metal powders are 316L stainless steel powders (SS). The master objective is to compare the performance of a biodegradable binder with a commercial one based on polyolefins. Different challenges must be overcome in SS injection molding, as follows: to decrease binder/carbon content in feedstocks; to decrease carbon contamination during debinding and sintering; to avoid the formation of chromium carbide and presence of precipitation-free zones; to avoid the grain growth during sintering and to reduce the feedstock price. The optimization of the feedstocks was performed using a torque rheometry technique. Feedstocks of coated and uncoated SS powders mixed with an agar-based binder were used to produce sound parts. A feedstock constituted by SS powders mixed with a high quality commercial binder was the standard. SS with agar-based on feedstocks can admit solids content similar to those based on the commercial binder (62 vol.%). For similar powder content, the sinters resulting from feedstocks with the agar-based binder shows a lower quantity of solid solution of carbon and chromium carbides, absence of precipitation-free zones than commercial feedstocks and good sinter soundness. Coating powders with nanocrystalline stainless steel contribute to control grain growth during debinding and sintering.
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Raza Malik, Muhammad Rafi, Faiz Ahmad, Othman Mamat, Mohd Afian Omar, R. M. German, and Ali S. Muhsan. "Effects of Sintering Temperature and Cooling Rate on Mechanical Properties of Powder Injection Molded 316L Stainless Steel." Solid State Phenomena 185 (February 2012): 102–5. http://dx.doi.org/10.4028/www.scientific.net/ssp.185.102.

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This research presents the effects of temperature and cooling rate on mechanical properties of powder injection molded 316L Stainless steel. Steel powder and binder were mixed together to produce the feedstock. The green samples were produced by injection molding and debinded. Brown test samples were sintered in vacuum at 1325°C, 1360°C and 1380°C for 2h with two heating and cooling rates 5°C/min and 10°C/ min. The test samples sintered at 1325°C achieved maximum sintered density. The higher cooling rate improved the strength of the sintered test samples. The maximum sintered density of 96% and tensile strength of 503MPa was achieved and these results are comparable to the wrought 316L stainless steel (according to ASTM standard).
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Jang, Jin Man, Wonsik Lee, Se-Hyun Ko, Chulwoong Han, and Hanshin Choi. "Oxide Formation In Metal Injection Molding Of 316L Stainless Steel." Archives of Metallurgy and Materials 60, no. 2 (June 1, 2015): 1281–85. http://dx.doi.org/10.1515/amm-2015-0114.

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Abstract The effects of sintering condition and powder size on the microstructure of MIMed parts were investigated using water-atomized 316L stainless steel powder. The 316L stainless steel feedstock was injected into micro mold with micro features of various shapes and dimensions. The green parts were debound and pre-sintered at 800°C in hydrogen atmosphere and then sintered at 1300°C and 1350°C in argon atmosphere of 5torr and 760torr, respectively. The oxide particles were formed and distributed homogeneously inside the sample except for the outermost region regardless of sintering condition and powder size. The width of layer without oxide particles are increased with decrease of sintering atmosphere pressure and powder size. The fine oxides act as the obstacle on grain growth and the high sintering temperature causes severe grain growth in micro features due to larger amount of heat gain than that in macro ones.
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Abdullah, Mohd Fazuri, Abu Bakar Sulong, Norhamidi Muhamad, Muhammad Ilman Hakimi Chua Abdullah, and Nor Hamdan Nor Yahya. "Comparison on Rheology Properties of Polypropylene and Polyethylene as Binder System with Stainless Steel 316L for Metal Injection Moding." Key Engineering Materials 471-472 (February 2011): 409–14. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.409.

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The comparison of binder system between PP/ palm stearin and PE/ palm stearin both mixed with palm stearin were studied based on the rheological properties to (MIM) process. The microstructure of distribution and dispersion studied using scanning electron microscope (SEM) to observe the pattern of the attached binder with stainless steel powder. The types of binder system used were palm stearin with Polypropylene (PP) and Polyethylene (PE). The powder loading for stainless steel 316L with average size of 20µm used was determined at 66 vol %. The palm stearin was the main significant factor for both viscosity and sensitivity of the feedstock behavior. Less content of palm stearin reduce the viscosity of the feedstock in the range of 100-10000 Pa.s and less influence on changing towards temperature and pressure. As the percentage of addition of palm stearin increase, the feedstock becomes less viscous with high sensitivity. PP and PE feedstock shows dilatant and pseudoplastic flow behavior respectively. PE homogenously coated each of stainless during morphology observation. Meanwhile poor distribution of PP can be observed from SEM observation at 1000x magnification.
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Norita, Hassan, Sahrim Ahmad, N. Muhamad, Mohd Afian Omar, and Noor Azlina Hassan. "Morphology and Mechanical Properties of MIM Feedstock Using TPNR Backbone Binder." Advanced Materials Research 1115 (July 2015): 279–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1115.279.

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This study has examined the effects of using TPNR backbone polymer on the morphology and mechanical properties of the metal injection moulding feedstock 316L stainless steel with paraffin wax (PW) and palm stearin (PS) respectively as the main binder and stearic acid as a lubricant during mixing and injection moulding process. Tensile behaviour indicates that the green sample of feedstock PW/TPNR/SA system gives higher value compared to PS/TPNR/SA system. Morphology studies showed that green samples of PS/TPNR/SA exhibited brittleness fracture compared to PW/TPNR/SA system.
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Dissertations / Theses on the topic "316L stainless steel feedstock injection"

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Tavares, André Carvalho. "Avaliação de misturas injetáveis aplicadas à fabricação de micro componente para pinças de biópsias por moldagem de pós por injeção." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/116649.

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A moldagem de pós por injeção (MPI) foi empregada neste trabalho para a fabricação de micro componentes de uma pinça de biópsia, através do desenvolvimento de misturas injetáveis. Utilizou-se a liga de aço inoxidável AISI 316L, liga reconhecidamente biocompatível, para obtenção dos micro componentes. Determinando a quantidade de 39% em volume para fração orgânica das quatro formulações de misturas injetáveis produzidas neste trabalho. Os polímeros estruturais empregados foram o PP, o PEBDL, o PEAD e o PMMA. Como material auxiliar de fluxo foi utilizada a parafina e para agente surfactante, o ácido esteárico. O desenvolvimento do sistema de extração química do polímero auxiliar de fluxo com solvente e posterior extração térmica do ligante em forno convencional e em um reator a plasma foram testados, ainda se empregou estes para testes em sinterização a temperaturas 1200°C, 1250°C e 1300°C. A extração química foi realizada com hexano atingindo 2,41% em massa de material extraído das amostras, após seis horas em um sistema aquecido entre 60°C e 70°C e uma atmosfera de vácuo. As amostras foram testadas química, física, mecânica e eletroquimicamente. Obteve-se os melhores resultados em termos de densificação de 7,05 g/cm³ para as amostras extraídas a plasma e sinterizadas a 1300 °C à vácuo em forno tubular. Isso significa uma densificação de 88,96% comparada a densidade do material comercial cuja a densidade é 7,93 g/cm³. As microdurezas encontradas nas amostras sinterizadas a 1300 °C em um forno convencional obtiveram valores de 208HV se mostrando maiores do que os 165HV obtido de um material maciço fabricado pelo extrusão e comercialmente vendido. Encontrou-se a dureza de 55HRB nas amostras processadas a 1300 °C, devido a presença de poros em componentes sinterizados. Nos componentes maciços foram medidos a dureza de 88HRB que foi maior que os resultados das amostras sinterizadas. As análises metalográficas mostraram um tamanho de grão variando entre, 30 e 50μm, se comparado ao tamanho de partícula médio do D90 de foi de 8,59 μm, se estima que este aumento foi entorno de três vezes e meia. Os testes químicos revelaram que a extração térmica em reatores a plasma melhoram significativamente os níveis de C, N, H e S quando comparados ao processo de extração térmica em forno convencional. A redução dos níveis de carbono residual, resultaram em diminuição do carboneto de cromo nas amostras, provocando uma menor corrosão. As amostras sinterizadas a 1200 °C a plasma apresentaram os melhores resultados de corrosão.
The powders injection molding (PIM) was used in this research, with objective to manufacture micro component, for application in biopsy forceps being developed injectable mixtures . It was used the powder stainless steel AISI 316L alloy, material biocompatible, to obtain the micro components. Through tests was determining the amount optimal volume in 39 % for the organic fraction of the four formulations of injectable mixtures produced in this research. The structural polymers used were PP , LLDPE , HDPE and PMMA . The paraffin was used as auxiliary material flow, the surfactant agent employed that was stearic acid . The development of chemical debiding and the thermal extraction for binder system, was used the conventional furnace and in a plasma reactor were tested also be employed for these tests sintering temperature 1200 ° C , 1250 °C and 1300 °C. Chemical extraction was performed with hexane achieving 2.41 % by extracted mass of sample material, after six hours in a heated system between 60 °C and 70 °C and a vacuum atmosphere. The samples were tested analysis by chemical , physical , mechanical and electrochemical.If it obtained the best results in terms of densification of 7.05g/cm ³ for plasma samples extracted and sintering at 1300 °C in vacuum tube furnace . This means densification of 88.96 % compared to the density of commercial material whose density is 7.93 g/cm ³ . The microhardness found in the samples sintered at 1300°C in a conventional furnace obtained 208HV microhardness showing larger than the commercial 165HV. Found that the HRB hardness of 55 in the samples processed at 1300 °C, due to the presence of pores in sintered parts. In the extruded components were measured hardness of 88HRB which was higher than the results of the sintered samples. The metallographic analysis showing a grain size ranging between 30 and 50μm , compared to the average particle size D90 was 8,59 microns is estimated that this increase was around three and half times . The chemical tests revealed that the thermal plasma extraction reactor significantly improve the levels of C, N , H and S compared to the process heat extraction in a conventional furnace . The residual carbon levels significantly improved, which helps to avoid the formation of chromium carbides , which aumnetou corrosion resistance . The best results in terms of corrosion were found for the samples sintered at 1200 ° C the plasma.
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Omar, Mohd Afian. "Injection moulding of 316L stainless steel and NiCrSiB alloy powders using a PEG/PMMA binder." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310806.

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Ainsley, C. C. "An investigation into the use of slip casting of 316L stainless steel as a method of forming injection moulding tools." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263770.

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Lindner, Thomas, Martin Löbel, and Thomas Lampke. "Phase Stability and Microstructure Evolution of Solution-Hardened 316L Powder Feedstock for Thermal Spraying." MDPI AG, 2018. https://monarch.qucosa.de/id/qucosa%3A33159.

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A solution-hardening of AISI 316L stainless-steel powder was conducted. The expansion of the crystal lattice and a strong increase in the nanoindentation hardness confirm the successful diffusion of carbon and nitrogen in the interstices. A multiphase state of the powder feedstock with phase fractions of the metastable S-phase (expanded austenite) mainly at the particle’s edge, and the initial austenitic phase within the core was found. Thermal spraying using high velocity oxy-fuel (HVOF) and atmospheric plasma spraying (APS) prove the sufficient thermal stability of the Sphase. Microstructural investigations of the HVOF coating reveal the ductility of the S-phase layer, while the higher heat load within the APS cause diffusion processes with the initial austenitic phase. The lattice expansion and the nanoindentation hardness decrease during thermal spraying. However, the absence of precipitates ensures the sufficient heat stability of the metastable S-phase. Even though further efforts are required for the thermochemical treatment of powder feedstock, the results confirm the feasibility of the novel powder treatment approach.
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Ikegami, Rogério Akihide. "Conformação de pó de aço inoxidável através do processo de injeção à baixa pressão." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/18/18135/tde-11072018-112547/.

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Metalurgia do pó é o uso de metais na forma de pó para a manufatura de produtos. Pós metálicos são combinados (misturados) e compactados em um molde. O material compactado recebe um tratamento térmico ou é sinterizado em um ambiente controlado para a união das partículas para formar um produto denso e resistente. Injeção de pós metálicos tem se destacado mundialmente na produção de componentes de pequenas dimensões e formas complexas em substituição a fundição sob pressão e a sinterização convencional. Atualmente a injeção de pós metálicos está se tornando uma opção competitiva relativamente à peças fundidas, forjadas, usinadas e estampadas. O presente trabalho revisa as técnicas de injeção de pós metálicos e aplica o processo de injeção à baixa pressão utilizando pó de aço inoxidável 316L com granulometria fina (15 μm). Os produtos injetados, uma vez extraídos o VO e sinterizados, foram submetidos à ensaios de tração, dureza e micrográficos. Os resultados obtidos são apresentados e discutidos. O trabalho, para a sua viabilização, incluiu a reforma de uma injetora de bancada à baixa pressão e a construção de moldes de injeção.
Powder metallurgy is the use of metals in the powder form for the manufacture of products. Metallic powders are combined (mixed) and compacted in a die. The compacted material receives a thermal treatment or it is sintered in an controlled atmosphere for the particle binding to form a dense and resistant product. lnjection of metallic powders has if globally highlighted in the production of components of small dimensions and complex forms in substitution the pressure casting and the conventional sintering. Nowadays the injection of metallic powders is becoming relatively a competitive option than casting, forging, machining and stamping. The present work revises the techniques of injection of metallic powders and it applies the injection process to the low pressure using powder of stainless steel 316L with fine granulation (15 μm). The injected products, once debinded and sintered, were submitted to tensile test, hardness and micrography. The results are presented and discussed. In this work, included the reform of a low pressure injection machine and construction of injection dies.
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Kuo, Fang –. Jen, and 郭芳仁. "Uses the metal injection molding technology to make the 316L stainless steel parts." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/14472159632103390641.

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碩士
國立勤益科技大學
機械工程系
98
The 316L stainless steel components for manufacturing paper study, research methodology metal powder injection molding technology manufacturing early sample blank, off the solvent and ester binder removal furnace has been off ester tofo placed into a vacuum furnace, the control temperature rate, increasing temperature and the critical parameters of the furnace under vacuum sintered into the highest porosity, the best strength of metal components. Most of powder metallurgy sintering technology of metal technology, said the highest component density, mechanical properties of the banks of the strongest, while the porous sintered metal technology is the test the other direction, the device has a porous sintered into the highest, the lowest density so that components with the highest degree for the purpose of ventilation. Porous components are used in filtration, separation, catalysis, put out flame, heat exchange and gas distribution industries Yong Tu, widely used in chemical, mechanical, metallurgical, pharmaceutical and food process, is a powder metallurgy techniques special applications, there is enormous potential. In this study, the impact of the porosity of porous materials, the factors detailed in the study done. Using 316L stainless steel powder material, powder fine of between 0~20μm.Select paraffin mixed polymer plastic material as the binder mixing granulation, using precise production of a thickness of 2mm steel cylindrical cup-shaped mold to melt metal powder injection molding machine metal powder particles, the beginning of injection molding of the sample blank shape. After the initial blank shape to be off by solvent, ester wax removal of binder components, and then removal of polymer components at high temperature furnace, and finally to multi-stage heating rate, sintering of metal material made of porous permeability. The results showed: de ester process and sintering of the temperature control and heating rates directly affect the porosity and pore size; the porosity, permeability metal porosity is the key feature, so it will be a system test, change the injection molding pressure, respectively,sintering temperature and the production of compact components with porous components.SEM observation of the sample made to change the surface pores to measure the proportion of measured changes in density and porosity to TGA test samples hot off the process of weight change of ester to testing machine components and mechanical properties in order to get to control the density, tensile strength, hardness and porosity, the porosity of the best parameters. According to multiple sets of different parameters to the results of comprehensive consideration of product porosity, strength, density and other factors, this study to determine the optimum production parameters for the injection molding pressure 1000kg/cm ^ 2, hot off ester temperature 800 ℃, 1200 ℃ sintering temperature , retention time 60 minutes, in such parameters obtained for 316L stainless steel porous materials, the highest porosity, high impact strength up to more than 70% dense material.
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Chang, Po-Yao, and 張博堯. "Study on the Microstructure and Mechanical Properties of SUS-316L Stainless Steel by Adding TaC Powders Through a Metal Injection Molding Process." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/vka3y3.

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碩士
國立臺北科技大學
材料科學與工程研究所
106
SUS-316L is a kind of austenitic stainless steel with has great corrosion resistance, making it one of the mostly used materials. It can satisfy general electronic parts requirements for magnetic property, corrosion resistance and appearance. However, SUS-316L stainless steel often cannot meet the requirements expected in regard to its mechanical properties. Metal Injection Molding (MIM) is a relatively new production method that can make a product with higher density and increased strength. Therefore, this study utilized the Metal Injection Molding (MIM) process to improve the sintered density and mechanical properties by adding TaC powder. In the present research, different ratios of metal powder and binder (93:7 and 92:8 wt%) were mixed and underwent various sintering at 1340°C, 1360°C, 1380°C and 1400°C, respectively. Moreover, the follow-up research added different ratios of TaC powders (1, 3 and 5%) to improve the properties of SUS-316L stainless steel. Finally, the mechanical properties and microstructure were inspected. The experimental results showed that the mixing ratio of 93:7 wt% of the metal powder and binder, and sintered at 1380°C possessed the optimal properties. Meanwhile, the sintered density was 7.65 g/cm3, hardness was HV0.5 134, tensile strength and elongation reached 540 MPa and 22%, respectively. In addition, TaC powders proved helpful in inhibiting grain growth (20.89 → 13.75 µm). Significantly, the optimal properties were obtained by adding 5 wt% TaC powder. The sintered density increased to 7.89 g/cm3, with hardness enhanced to HV0.5 170, while tensile strength and elongation increased to 548 MPa and 25%, respectively. Consequently, according to the above discussion and experimental results, the addition of TaC powder in SUS-316L stainless steel can effectively improve the microstructure and mechanical properties.
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Book chapters on the topic "316L stainless steel feedstock injection"

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Costa, Isolda, Sizue Ota Rogero, Olandir Vercino Correa, Clarice Terui Kunioshi, and Mitiko Saiki. "Corrosion and Cytotoxicity Evaluation of AISI 316L Stainless Steel Produced by Powder Injection Molding (PIM) Technology." In Advanced Powder Technology IV, 86–92. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-984-9.86.

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Ibrahim, Rosdi, M. A. Omar, W. C. Goh, M. Mohamad, S. Muhamad, N. A. Yahya, Z. Radzi, and N. H. Abu Kasim. "Fabrication of 316L stainless steel parts by Injection Moulding for Biomedical Application using a Novel Binder." In 3rd Kuala Lumpur International Conference on Biomedical Engineering 2006, 102–5. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-68017-8_26.

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Conference papers on the topic "316L stainless steel feedstock injection"

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Kong, X., C. Quinard, T. Barriere, J. C. Gelin, F. Barlat, Y. H. Moon, and M. G. Lee. "MICRO POWDER INJECTION MOULDING OF 316L STAINLESS STEEL FEEDSTOCK AND NUMERICAL SIMULATION OF THE SINTERING STAGE." In NUMIFORM 2010: Proceedings of the 10th International Conference on Numerical Methods in Industrial Forming Processes Dedicated to Professor O. C. Zienkiewicz (1921–2009). AIP, 2010. http://dx.doi.org/10.1063/1.3457598.

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Toropkov, Nikita, Elena Glazkova, Nikolay Rodkevich, Aleksandr Pervikov, and Marat Lerner. "Effect of binder composition on properties of 316L stainless steel bimodal powder feedstock." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5132232.

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Wang, Liang, Sergio D. Felicelli, Jacob Coleman, Rene Johnson, Karen M. B. Taminger, and Ratessiea L. Lett. "Microstructure and Mechanical Properties of Electron Beam Deposits of AISI 316L Stainless Steel." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62445.

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Electron beam freeform fabrication (EBF3) is a process that uses an electron beam and wire feedstock to fabricate metallic parts inside a vacuum chamber. In this study, single and multiple layer linear deposits of AISI 316L stainless steel were produced with the EBF3 machine at NASA Langley Research Center (LaRC). EBF3 process parameters, including beam current, translation speed, and wire feed rate, were investigated in order to consider their effects on the resulting steel deposit geometry, microstructure and mechanical properties. Results indicate that the EBF3 process can produce pore-free, fully dense material within the range of process parameters used in this study. The electron beam deposited stainless steel has a solidification microstructure with fine columnar grains within most parts of the deposit due to the high cooling rate during the deposition, with some small homogeneous equiaxed grains at the top of the deposit. The mechanical properties of the deposits are comparable to those of wrought metal, which is attributed to the homogeneous fine-grained microstructure.
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Lindner, Thomas, Pia Kutschmann, Maximilian Grimm, Martin Löbel, and Jochen Fiebig. "Wear and Corrosion Behavior of Cold Gas Sprayed Stainless-Steel Coatings Using Solution-Hardened AISI 316L Powder." In ITSC2021, edited by F. Azarmi, X. Chen, J. Cizek, C. Cojocaru, B. Jodoin, H. Koivuluoto, Y. C. Lau, et al. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.itsc2021p0209.

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Abstract Due to their excellent corrosion resistance; austenitic stainless steels are suitable for surface protection applications. However; the application potential is often limited by the low wear resistance. An interstitial hardening of the surface layer area can solve this problem for massive wrought alloys. Further potential for improvement lies in the transition to surface technology. For this purpose; powder feedstock of the stainless-steel grade AISI 316L was gas nitrocarburized at low temperatures. The formation of a metastable expanded austenitic phase was achieved. Subsequently; the processing was carried out by cold gas spraying. Due to the simultaneously high process kinetics and low thermal load; dense coatings were produced while maintaining the metastable state of the feedstock. When compared to solid reference systems; the scratch resistance saw a marked improvement.
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J, Zhang, Sahli M, Gelin J-C, and Millot C. "Replication and Characterization of 316L Stainless Steel Micro-Structured Parts by Powder Injection Moulding." In 9th International Conference on Multi-Material Micro Manufacture. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-3353-7_267.

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Rabilah, Rosniza, Nor ‘Aini Wahab, Mohd Afian Omar, Talib Ria Jaafar, Salina Budin, Siti Mardini Hashim, Rosliza Sauti, and Mustaqim Abdul Razak. "Physical and mechanical properties of injection moulded 316L stainless steel using waste rubber binder." In ADVANCED MATERIALS FOR SUSTAINABILITY AND GROWTH: Proceedings of the 3rd Advanced Materials Conference 2016 (3rd AMC 2016). Author(s), 2017. http://dx.doi.org/10.1063/1.5010582.

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Kersten, Samuel, Maxwell Praniewicz, Omar Elsayed, Thomas Kurfess, and Christopher Saldana. "Parametric Study and Multi-Criteria Optimization in Laser Directed Energy Deposition of 316L Stainless Steel." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8389.

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Abstract Directed Energy Deposition (DED) is an additive manufacturing technique in which a heat source is used to generate a small pool of molten material while powder feedstock is fed into the melt pool to create tracks of raised material on the surface of a part. Given the appropriate process parameters for the chosen material system and process conditions, fully dense complex geometric features are able to be constructed. In order to generate a high quality clad, two main criteria must be met: sufficient bonding with the substrate with minimized dilution of the clad by the base material and minimal porosity. Track shape is a key indicator in determining the quality of the process. This paper evaluates the influence of several of the key processing parameters — laser power, scanning speed, and powder mass flowrate — on single-clad track morphology. An analysis of variance (ANOVA) is performed to evaluate the significance of the main input parameters and the interactions between multiple parameters. A second-order polynomial model is then fit to the data to allow for predictive modelling of track shape based on a set of inputs. Finally, a multi-criteria cost function is generated, and sequential quadratic programming is performed to solve the objective function. Through these operations, the correct combination of processing parameters can be selected in order to generate a cladded track with desirable geometric traits.
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Toropkov, Nikita, Marat Lerner, and Evgeny Mironov. "Feedstock investigation based on SAE 316L steel bimodal powders and PLA/PMMA for injection molding: An experimental study." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5132234.

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Rasheed, Fayaz, Elvis E. Dominguez-Ontiveros, Justin R. Weinmeister, and Charlotte N. Barbier. "Deep Learning for Intelligent Bubble Size Detection in the Spallation Neutron Source Visual Target." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23164.

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Abstract The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) will undergo proton power upgrade (PPU), increasing the proton beam power from 1.4 MW to 2.8 MW. From 2.8 MW, 2.0 MW will go to the current First Target Station and the rest will go to the future Second Target Station (STS). The First Target Station uses a liquid mercury target that is contained in a 316L stainless steel vessel. The proton beam is pulsed at 60 Hz, with a pulse of about 0.7μs. When the proton beam hits the target, the intense energy deposition leads to a rapid rise in temperature in the mercury. This temperature rise creates pressure waves that propagate through the mercury and cause cavitation erosion. The power upgrade will cause stronger pressure waves that will further increase damage because of cavitation. Injecting small helium bubbles in the mercury has been an efficient method of mitigating the pressure wave at 1.4 MW. However, at higher power, additional mitigation is necessary. Therefore, the 2 MW target vessel will be equipped with swirl bubblers and an additional gas injection port near the nose to inject more gas in the target. To develop a gas injection strategy and design, flow visualization in water with a transparent prototypical target (“visual target”) was performed. Bubble sizes and their spatial distribution in the flow loop are crucial to understanding the effectiveness of the bubbles in mitigating pressure waves. Bubbles were generated in the visual target under varied conditions of input pressures with helium and air. Images were captured using a high-speed camera at varied frame rates at different positions away from the swirl bubbler and different depths in the flow loop under varying lighting conditions. Initially, methods such as circular Hough transforms were applied after a series of images processing to obtain a general distribution of bubble sizes. Bubbles smaller than 500 μm are preferred to effectively mitigate the effect of pressure waves, which demands an accurate bubble detection and sizing system. Intelligent detection and identification of bubble sizes alleviate misdetection and improves accuracies. Employing neural networks, intelligent detection of bubble sizes and their distribution was developed and provides a robust alternative to traditional techniques. Human intervention was employed to label in-focus and out-of-focus bubbles in the set of training images. An object detection network using a pretrained convolutional neural network was created that extracted the features from the training images. Data augmentation was used to improve network accuracy through a random transformation of the original data.
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