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Journal articles on the topic 'Jominy'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Smoljan, B., Dario Iljkic, N. Tomasic, Imre Felde, G. E. Totten, and Tamás Réti. "Evaluation of Steel Hardenability by JM^®-Test." Materials Science Forum 537-538 (February 2007): 607–14. http://dx.doi.org/10.4028/www.scientific.net/msf.537-538.607.

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The modified Jominy-test was designed for prediction of hardenability of high-hardenability tool steels and possibility of application of modified Jominy-test in computer simulation of quenching of high-hardenability tool steels has been investigated. Because of high hardenability there are limits in application of original Jominy-specimen in simulation of quenching of steels. The performance of investigated modified Jominy-test in simulation of quenching of high-hardenability tool steels was estimated by comparison of cooling curves of modified Jominy-specimen (JM®-specimen) and cylindrical s

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2

Nurrohman, Ari, and Tri Mulyanto. "Rancang Bangun Alat Uji Jominy Dengan Standar ASTM A255." Jurnal METTEK 7, no. 2 (2021): 66. http://dx.doi.org/10.24843/mettek.2021.v07.i02.p02.

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Tidak semua material mampu dikeraskan, untuk mengetahuinya perlu dilakukan uji hardenability. Salah satu metode pengujian hardenability yaitu jominy test. Uji jominy merupakan sebuah metode untuk mengetahui kemampuan pengerasan logam. Caranya yaitu benda uji dipanaskan pada suhu yang ditentukan, kemudian didinginkan dengan menyemprotkan air pada salah satu ujungnya (bagian bawah). Setelah pengujian dengan alat uji jominy, diukur kekerasannya dengan menggunakan alat uji kekerasan. Mengingat pentingnya proses hardenability dalam industry dan pendidikan maka penelitian ini bertujuan untuk membuat

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3

Hwang, Joong-Ki. "Effects of Water Jet Height and End Dipping on the Cooling Rate and Hardenability in the Jominy End Quench Test." Processes 9, no. 4 (2021): 607. http://dx.doi.org/10.3390/pr9040607.

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The effects of water jet height and end dipping on cooling rate and hardenability in the Jominy end quench test were investigated to understand the Jominy test in more detail. Experimental tests were conducted under end dipping cooling condition as well as for specific water jet heights of 35, 65, and 100 mm. The thermal behavior and mechanical properties of the Jominy specimen with region were evaluated using thermocouples and hardness measurements, respectively. The effect of the water jet height on the thermal and hardness behaviors was not large; especially, the influence of water jet heig

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4

Çakır, Mehmet. "A Comprehensive Study of the Relationships between Hardenability and Heat Transfer in a Jominy Test Sample." El-Cezeri Fen ve Mühendislik Dergisi 12, no. 2 (2025): 213–17. https://doi.org/10.31202/ecjse.1597001.

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Quenching is that the steel is quickly cooled in a quenching medium from the austenetising temperature, typically in between 845 and 870 °C. Jominy end quench test is a standard test used to characterize hardenability of steels. In this study, 1050 steel is quenched with Jominy end quenched test. Thermocouples were placed on the sample to determine the cooling rate in Jominy sample quenched end, and is investigated the relationship between heat transfer and hardenability. The relations among critical cooling rate, heat transfer and hardness is determinated in Jominy sample for 1050 steel. At t

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5

Miguel, Ibon, Itziar Berriozabalgoitia, Garikoitz Artola, Luis María Macareno, and Carlos Angulo. "Small Punch Test on Jominy Bars for High-Throughput Characterization of Quenched and Tempered Steel." Metals 13, no. 11 (2023): 1797. http://dx.doi.org/10.3390/met13111797.

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Studying the effect of quench and tempering heat treatments on steel, more specifically screening the effect of the austenitizing, quenching, and tempering conditions on mechanical properties, can be extremely material- and time-consuming when standard tensile testing specimens are employed. Jominy bar end quench testing has been used as a standard method to reduce the resources that are required for this type of screening. Jominy bar testing by itself shows, though, the limitation of yielding only hardness and microstructure as a result. In the last few years, the small punch test (SPT) stand

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6

Hunkel, M., Th Lübben, F. Hoffmann, and P. Mayr. "Using the jominy end-quench test for validation of thermo-metallurgical model parameters." Journal de Physique IV 120 (December 2004): 571–79. http://dx.doi.org/10.1051/jp4:2004120066.

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One of the most popular tests to determine the hardenability of steels is the Jominy-End-Quench-Test. Moreover this test is useful for simulation testing, too. In this paper the determination of heat transfer fluxes over the quenched surface as well as over the peripheral surface is described. The result is used for simulations of the Jominy-End-Quench-Test for two melts of SAE 52100 (100 Cr 6). One of these was taken from literature, one was used for experiments in IWT. Though transformation behaviors differ in an extreme way, the Jominy-End-Quench-Test can be simulated for both steels with g

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7

Yusuf, Yusuf, Asep Ruchiyat, and Irwan Susilo. "Pengaruh Variasi Temperatur Heat Treatment Terhadap Kemampukerasan Baja Komersil Dengan Metode Jominy Test." Injection: Indonesian Journal of Vocational Mechanical Engineering 1, no. 1 (2021): 1–9. http://dx.doi.org/10.58466/injection.v1i1.73.

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Kemampukerasan merupakan kemampuan suatu material untuk dapat dikeraskan sampai kedalaman tertentu dengan cara perlakuan panas hingga terbentuk martensit pada proses pendinginan untuk mencapai kekerasan tertentu. Salah satu metode pengujian hardenability yaitu Jominy Test. Benda uji dipanaskan pada suhu yang ditentukan, kemudian didinginkan dengan menyemprotkan air pada salah satu ujungnya. Setelah pengujian dengan alat uji Jominy, diukur kekerasannya dengan menggunakan alat uji kekerasan. Pengujian Jominy dilakukan berdasarkan standard ASTM A255. Pengujian mengunakan spesimen dengan panjang 1

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8

Réger, Mihály, Balázs Verő, Zsolt Csepeli, and Péter Pinke. "Intercritical Interrupted Jominy Test." Materials Science Forum 537-538 (February 2007): 549–54. http://dx.doi.org/10.4028/www.scientific.net/msf.537-538.549.

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The final microstructure of DP and TRIP assisted steels can evolve after hot working (hot rolling) or during post heat treatment process. In the formation of the final structure a number of different technological parameters have important role, e.g. finishing temperature of rolling, cooling rates, temperature of intercritical annealing, etc. As a result of the individual factors and their combinations a lot of production technology routes are feasible. The effect of the different combinations of these technological parameters on the microstructure can be mapped by a special Jominy end-quench

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9

Sitek, Wojciech, Jacek Trzaska, and Leszek Adam Dobrzański. "Modified Tartagli Method for Calculation of Jominy Hardenability Curve." Materials Science Forum 575-578 (April 2008): 892–97. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.892.

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Basing on the experimental results of the hardenability investigations, which employed Jominy method, the model of the neural networks was developed and fully verified experimentally. The model makes it possible to obtain Jominy hardenability curves basing on the steel chemical composition. The modified hardenability curves calculation method is presented in the paper, initially developed by Tartaglia, Eldis, and Geissler, later extended by T. Inoue. The method makes use of the similarity of the Jominy curve to the hyperbolic secant function. The empirical formulae proposed by the authors make

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10

Yusuf and Yudi Chandra. "PENGARUH VARIASI HOLDING TIME TERHADAP KEMAMPUKERASAN BAJA MENGGUNAKAN ALAT UJI JOMINY." INOVTEK POLBENG 8, no. 2 (2018): 257. http://dx.doi.org/10.35314/ip.v8i2.769.

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Kemampukerasan adalah kemampuan suatu material untuk dapat dikeraskan sampai kedalaman tertentu dengan cara perlakuan panas dengan properti mekanik, hingga terbentuk martensit pada proses pendinginan untuk mencapai kekerasan tertentu. Salah satu metode pengujian hardenability yaitu jominy test (Van Vlack, 1991). Uji jominy merupakan sebuah metode untuk mengetahui kemampuan pengerasan logam (baja). Pengujian jominy tes dilakukan berdasarkan standard ASTM A255. Pengujian dilakukan mengunakan baja ST 42 dengan panjang 100 mm dan diameter 25.4 mm dengan spesimen uji sebanyak 3 buah. Hasil pengujia

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11

Smokvina Hanza, Sunčana, Tea Marohnić, Dario Iljkić, and Robert Basan. "Artificial Neural Networks-Based Prediction of Hardness of Low-Alloy Steels Using Specific Jominy Distance." Metals 11, no. 5 (2021): 714. http://dx.doi.org/10.3390/met11050714.

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Successful prediction of the relevant mechanical properties of steels is of great importance to materials engineering. The aim of this research is to investigate the possibility of reducing the complexity of artificial neural networks-based prediction of total hardness of hypoeutectoid, low-alloy steels based on chemical composition, by introducing the specific Jominy distance as a new input variable. For prediction of total hardness after continuous cooling of steel (output variable), ANNs were developed for different combinations of inputs. Input variables for the first configuration of ANNs

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12

Smoljan, B., Dario Iljkic, Lovro Štic, and Zvonimir Kolumbić. "Mathematical Modelling of Steel Quenching." Materials Science Forum 879 (November 2016): 1813–18. http://dx.doi.org/10.4028/www.scientific.net/msf.879.1813.

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Mathematical modelling of phase transformations and hardness distribution in non-monotonic quenched steel specimen was developed based on the results of simple experimental test i.e. Jominy test. The hardness in specimen points was estimated by the conversion of cooling time results to hardness by using both, the relation between cooling time and distance from the quenched end of Jominy specimen, and by using the Jominy hardenability curve. The cooling curve at the specimen point was predicted by numerical modelling of cooling by using the finite volume method. Developed numerical model for co

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13

Wahyudi, Dedi, Jaim Jaim, and Djuhana Djuhana. "Perancangan Tangki Nosel (Nozzle) Semburan Air Pada Alat Tes Jomini (Jominy Test)." Jurnal Inovasi Ilmu Pengetahuan dan Teknologi 3, no. 2 (2022): 1. http://dx.doi.org/10.32493/jiptek.v3i2.24997.

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Tangki pendinginan pada alat uji jomini merupakan tempat dimana proses uji jomini berlangsung. Permasalahan yang terjadi banyaknya sisa-sisa cairan pada dasar tangki ini ketika proses pengujian selesai sehingga mengakibatkan timbulnya korosif yang mengakibatkan usia pakai tangki tersebut tidak lama. Kebocoran dan juga retak pada daerah sambungan las terjadi seiring dengan waktu berjalan. Tujuan penelitian ini untuk mengetahui model tangki, pengaruh arus las terhadap tegangan dan regangan dan terakhir untuk mengetahui kekuatan sambungan las. Pengujian kemiringan dasar tangki menggunakan beberap

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14

Ruan, Shi Peng, Ai Min Zhao, Yong Chao Li, Ming Yi Guo, and Zhao Yong Song. "Effect of Boron and Chromium on Hardenability in 0.33% C Cold Heading Steel." Materials Science Forum 867 (August 2016): 24–28. http://dx.doi.org/10.4028/www.scientific.net/msf.867.24.

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The effect of B and Cr on hardenability in 0.33% C cold heading steel was studied. The results show that the hardenability enhanced from adding 0.0020% B or 0.28% Cr. The length of high hardness stability region of the Jominy Curve obviously increased with adding B,and the hardness of low hardness stability region of the Jominy Curve increased significantly with adding Cr. The ideal critical diameter DI of the experimental steels was calculated, the DI is 20.0 mm of the base steel with 0.33% C and no other alloying element addition, but the DI becomes 29.5 mm with adding 0.28% Cr and 46.4mm wi

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15

Susilo, Irwan, Yusuf Yusuf, and Asep Ruchiyat. "PENGARUH VARIASI TEMPERATUR HEAT TREATMENT TERHADAP KEMAMPUKERASAN BAJA KOMERSIL DENGAN METODE JOMINY TEST." Injection: Indonesian Journal of Vocational Mechanical Engineering 1, no. 1 (2021): 1–9. http://dx.doi.org/10.58466/injection.v1i1.1346.

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Kemampukerasan merupakan kemampuan suatu material untuk dapat dikeraskan sampai kedalaman tertentu dengan cara perlakuan panas hingga terbentuk martensit pada proses pendinginan untuk mencapai kekerasan tertentu. Salah satu metode pengujian hardenability yaitu Jominy Test. Benda uji dipanaskan pada suhu yang ditentukan, kemudian didinginkan dengan menyemprotkan air pada salah satu ujungnya. Setelah pengujian denganalat uji Jominy, diukur kekerasannya dengan menggunakan alat uji kekerasan. Pengujian Jominy dilakukan berdasarkan standard ASTM A255. Pengujian mengunakan spesimen dengan panjang 10

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16

Tomašić, Neven, Wojciech Sitek, Dario Iljkić, and Wendimu Fanta Gemechu. "Designing the Chemical Composition of Steel with Required Hardenability Using Computational Methods." Metals 14, no. 9 (2024): 1076. http://dx.doi.org/10.3390/met14091076.

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This paper introduces an innovative approach that enables the automated and precise prediction of steel’s chemical composition based on the desired Jominy curve. The microstructure, and in fact the presence of martensite, is decisive for the hardness of the steel, so the study considered the occurrence of this phase at particular distances from the quenched end of the Jominy sample. Steels for quenching and tempering and case hardening were investigated. With the representative collected dataset of hardness values from the quenched end of the Jominy specimen, microstructure and chemical compos

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17

Rizkisyah, Mohamad, Jaim Jaim, and Djuhana Djuhana. "Analisa Kinerja Pompa Sentrifugal Pada Alat Uji Jominy." Jurnal Inovasi Ilmu Pengetahuan dan Teknologi 3, no. 2 (2022): 17. http://dx.doi.org/10.32493/jiptek.v3i2.25000.

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Mesin pemindah air atau disebut pompa air pada masa sekarang ini sangat membantu kehidupan manusia. Penggunaannya tidak hanya terbatas pada kegunaan untuk mengalirkan air sebagai kebutuhan utama masyarakat (minum, mandi, dan mencuci). Tetapi fungsi dari pompa air juga dapat dimanfaatkan untuk berbagai hal lainnya. Salah satu pemanfaatan pompa air adalah pemanfaatannya untuk suatu alat yang biasa dikenal atau disebut dengan nama alat uji jominy. Alat uji jominy adalah alat yang dipakai sebagai alat bantu untuk proses pendinginan (quenching) dalam melakukan pengujian mampu keras pada material lo

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18

Pohjonen, Aarne, Joonas Ilmola, and Jari Larkiola. "Numerical Simulation of Jominy End Quench Test Using Coupled Heat Transfer and Phase Transformation Model." Key Engineering Materials 968 (December 6, 2023): 15–20. http://dx.doi.org/10.4028/p-bxl3mj.

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Jominy end quench test is a standardized metallurgical experiment for obtaining data on steel hardenability. Construction of numerical simulation of the test provides a way for parameterizing and validation of numerical models using the experimental data. In the current work we present the coupled heat transfer, conduction and phase transformation model, which allows for calculation of phase fractions at different positions at the Jominy test piece, and includes the latent heat released by the phase transformations. Also, the temperature and phase fraction dependence of the thermal conductivit

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19

Song, Yue Peng, Xiao Zhang, and Guo Quan Liu. "Computer-Aided Optimized Design for Multi-Alloyed Steels Specifying Hardenability Requirements." Key Engineering Materials 353-358 (September 2007): 3112–15. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.3112.

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The Jominy end-quench curves of non-alloyed and alloyed steels can be predicted by nonlinear equation method. Without considering the interaction effects of alloying elements on the curves, however, the prediction for multi-alloyed steels may be different markedly from that experimentally determined. Hence, an improved mathematic model for predicting the Jominy end-quench curves of multi-alloyed steels was proposed by introducing a parameter named “alloying element interactions equivalent” to the nonlinear equations. With the improved model, the predicted Jominy curves agree very well with the

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20

Marohnić, Tea, Sunčana Smokvina Hanza, Dario Iljkić, and Robert Basan. "Possibilities of Using Specific Jominy Distance in ANN Models for Predicting Low-Alloy Steels’ Microstructure." Materials 18, no. 3 (2025): 564. https://doi.org/10.3390/ma18030564.

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Understanding the volume fractions of microstructure constituents such as ferrite, pearlite, bainite, and martensite in low-alloy steels is critical for tailoring mechanical properties to specific engineering applications. To address the complexity of these relationships, this study explores the use of artificial neural networks (ANNs) as a robust tool for predicting these microstructure constituents based on alloy composition, specific Jominy distance, and heat treatment parameters. Unlike previous ANN-based predictions that rely on the hardness after quenching as an input parameter, this stu

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Li, Zhi Hui, Bai Qing Xiong, Yon Gan Zhang, Xi Wu Li, Feng Wang, and Hong Wei Liu. "Quench Sensitivity and Quench-Induced Precipitation in High Strength 7xxx Series Aluminum Alloys." Advanced Materials Research 668 (March 2013): 907–11. http://dx.doi.org/10.4028/www.scientific.net/amr.668.907.

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This paper investigates the quench sensitivity of some selected 7xxx series Al alloys based on a Jominy End Quench method. The precipitate microstructures as a function of cooling rate during quenching are also characterized by using transmission electron microscopy (TEM). The results indicated that quench sensitivity and therefore the mechanical properties inhomogeneity in large plates or forgings can be predicted more accurately by the simultaneous combination of hardness and electrical conductivity measurements based on Jominy end quench. The hardness drop and conductivity increase in the n

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Xavier, Carlos Roberto, Tarcisio Dos Santos Gonçalves, João Antonio De Araújo Sousa, Luiz Carlos De Andrade Vieira, and Célio De Jesus Marcelo. "Projeto e Construção do Aparato Jominy: Uma Contribuição para a Pesquisa no UniFOA Design and Construction of the Jominy Apparatus: A Contribution for the Research at the UniFOA." Cadernos UniFOA 4, no. 10 (2017): 15. http://dx.doi.org/10.47385/cadunifoa.v4i10.964.

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Este trabalho diz respeito ao projeto e construção do aparato experimental Jominy para a realização do ensaio de temperabilidade em aços no UniFOA. Essa iniciativa partiu do curso de Engenharia Mecânica, tendo como objetivo a construção de um instrumento prático e confiável para o estudo das transformações que ocorrem nos metais, em especial nos aços, quando submetidos a um determinado ciclo térmico. Dessa forma, com o empenho dos alunos e dos técnicos de laboratório da instituição, foi possível, baseado na norma NBR 6339/89, projetar e construir o aparato Jominy para a determinação da tempera

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23

Xavier, Carlos Roberto, Tarcisio dos Santos Gonçalves, João Antonio de Araújo Sousa, Luiz Carlos de Andrade Vieira, and Célio de Jesus Marcelo. "Projeto e Construção do Aparato Jominy: Uma Contribuição para a Pesquisa no UniFOA Design and Construction of the Jominy Apparatus: A Contribution for the Research at the UniFOA." Cadernos UniFOA 4, no. 10 (2017): 15–18. http://dx.doi.org/10.47385/cadunifoa.v4.n10.964.

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Este trabalho diz respeito ao projeto e construção do aparato experimental Jominy para a realização do ensaio de temperabilidade em aços no UniFOA. Essa iniciativa partiu do curso de Engenharia Mecânica, tendo como objetivo a construção de um instrumento prático e confiável para o estudo das transformações que ocorrem nos metais, em especial nos aços, quando submetidos a um determinado ciclo térmico. Dessa forma, com o empenho dos alunos e dos técnicos de laboratório da instituição, foi possível, baseado na norma NBR 6339/89, projetar e construir o aparato Jominy para a determinação da tempera

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24

Gümüşsoy, Aleyna, Onur Gülbaba, Işık Kaya, and Emrah Fahri Özdoğru. "Simulation of Quench Rate by Jominy End Quench Test for 6082 Aluminium Alloys." Key Engineering Materials 988 (September 27, 2024): 11–20. http://dx.doi.org/10.4028/p-sedg1g.

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In the present study, it is aimed to investigate the influence of quench rate on the hardness and electrical conductivity that obtained after artificial aging by using Jominy End Quench test method. The Jominy End Quench test bars were solution heat treated at 560°C for 3 hours. After solution heat treatment, water, spray, and air quenching medias were used in order to obtain different quench rates. After the quench, quench rate determination, hardness and electrical conductivity measurements were performed for three different quenching medias. Then, artificial aging heat treatment were applie

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Sitek, W., and A. Irla. "The Use of Fuzzy Systems for Forecasting the Hardenability of Steel." Archives of Metallurgy and Materials 61, no. 2 (2016): 797–802. http://dx.doi.org/10.1515/amm-2016-0134.

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Abstract The goal of the research carried out was to develop the fuzzy systems, allowing the determination of the Jominy hardenability curve based on the chemical composition of structural steels for quenching and tempering. Fuzzy system was created to calculate hardness of the steel, based on the alloying elements concentrations, and to forecast the hardenability curves. This was done based on information from the PN-EN 10083-3: 2008. Examples of hardenability curves calculated for exemplar steels were presented. Results of the research confirmed that fuzzy systems are a useful tool in evalua

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Landgraf, Pierre, Peter Birnbaum, Enrique Meza-García, Thomas Grund, Verena Kräusel, and Thomas Lampke. "Jominy End Quench Test of Martensitic Stainless Steel X30Cr13." Metals 11, no. 7 (2021): 1071. http://dx.doi.org/10.3390/met11071071.

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In this study, the influence of thermal treatments on the properties of the martensitic stainless steel X30Cr13 (EN 10088-3: 1.4028) were investigated. These steels are characterized by a high hardness as well as corrosion resistance and can be specifically adjusted by heat treatment. In particular, the austenitizing temperature ϑA and cooling rate T˙ affect the hardness and corrosion properties of martensitic stainless steels. In order to investigate these influences, the Jominy end quench tests were performed at varying austenitizing temperatures. The aim is to determine the hardness and cor

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Kovačič, M. "Genetic Programming and Jominy Test Modeling." Materials and Manufacturing Processes 24, no. 7-8 (2009): 806–8. http://dx.doi.org/10.1080/10426910902841050.

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ZIMMERMANN, Hantony Matheus, Cristiano José TURRA, and Mario WOLFART JR. "Dispositivo Prático e de Baixo Custo, com Tecnologia 100% Nacional, para Avaliação da Temperabilidade de Aços." Caderno de Propriedade Intelectual e Transferência de Tecnologia 2, no. 1 (2020): 14–27. http://dx.doi.org/10.21166/cpitt.v2i1.2029.

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A Extensão Tecnológica adquire destaque no Brasil a partir de 2008 com a organização da Rede Federal de Educação Tecnológica integrando cerca de 600 campi dos Institutos Federais. Além dos programas de extensão ‘clássicos’ que integram saberes tradicionais da comunidade e conhecimentos especializados da academia, a Extensão Tecnológica também contribui para o desenvolvimento tecnológico em setores específicos através da parceria com indústrias. Este trabalho exemplifica os frutos dessa parceria ao apresentar o desenvolvimento de dispositivo voltado à determinação da temperabilidade de aços atr

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Valentini, R., V. Colla, M. Sgarbi, and L. M. Reyneri. "Parametric Jominy profiles predictor based on neural networks." Revista de Metalurgia 41, Extra (2005): 314–17. http://dx.doi.org/10.3989/revmetalm.2005.v41.iextra.1047.

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Yadi, Indra. "ANALISA MAMPU KERAS BAJA ST 60 DENGAN METODE ALAT JOMINY TEST." JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY 1, no. 1 (2018): 19. http://dx.doi.org/10.31289/jmemme.v1i1.1192.

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<p><em>Mampu keras baja merupakan petunjuk penting untuk menentukan pola laku panas dan sifat bahan yang akan dilakukan dalam menghasilkan produk komponen. Salah satu cara untuk mengetahui hardenability baja, yaitu dengan menggunakan metode uji jominy. Penelitian ini, menggunakan metode uji jominy, dengan parameter temperature austenisasi, waktu penahanan, media pendingin, kemudian diverifikasikan dengan hasil prediksi menggunakan metodepersamaan numerik tidak linear. Berdasarkan hasil penelitian diperoleh, bahwa makin tinggi temperatur austenisasi dan makin lama waktu penahanan, n

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Wang, Xin, and Baokui Li. "A carburizing-quenching Jominy curve hardness model." Materials Letters 265 (April 2020): 127422. http://dx.doi.org/10.1016/j.matlet.2020.127422.

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Kang, Lei, Yuan Jun Cui, Gang Zhao, and Ni Tian. "Precipitation Kinetics Analysis of the Cooling Process Following the Solid Solution Treatment of 7B50 Aluminum Alloy." Materials Science Forum 898 (June 2017): 213–22. http://dx.doi.org/10.4028/www.scientific.net/msf.898.213.

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Based on the TTP curves of 7050 alloy, and the continuous cooling curves of 7B50 alloy at different positions of Φ70 mm improved Jominy specimen, the hardness distribution along the thickness direction of 7B50 alloy thick plates was analyzed and predicted by means of the isothermal precipitation kinetics and the quench factor analysis method. The results show that when 7050 alloy is isothermal treated at 200°C~400°C, the exponent n in its Johnson-Mehl-Avrami equation is close to 1, which indicates that the nucleation process of new precipitates is stable. In this equation the coefficient k is

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Yanzón, Rodolfo, José Carlos Bocca, Daniel Rebollo, and Arlinton Sánchez. "Predicción de dureza en piezas construidas con acero templado y revenido." Revista Iberoamericana de Ingeniería Mecánica 13, no. 2 (2009): 25–45. http://dx.doi.org/10.5944/ribim.13.2.42629.

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Este trabajo tiene como objetivo desarrollar una herramienta computacional sencilla, que permita predecir propiedades mecánicas en puntos de una pieza sometida a un tratamiento de temple y revenido. Para ello, se tiene en cuenta la información suministrada por autores como J.S Kirkaldy [1], C. Bates et al. [2], M. Gergely et al. [3], y los trabajos de W. Jominy et al. [4], M. Grossman [5] y otros. Sobre la base de esa información, se procura desarrollar un método de cálculo, que permita obtener los valores de dureza que tendrán puntos a lo largo del diámetro de una pieza, luego de haber sido s

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Irani, Missam, Sukhwan Chung, Mincheol Kim, Kwangoh Lee, and Mansoo Joun. "Adjustment of Isothermal Transformation Diagrams Using Finite-Element Optimization of the Jominy Test." Metals 10, no. 7 (2020): 931. http://dx.doi.org/10.3390/met10070931.

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A practical method for adjusting and optimizing isothermal transformation (IT) diagrams using the Jominy test is presented. The method is based on a finite-element optimization procedure, which iteratively minimizes the error between the target phase fractions and the corresponding finite-element solutions at the sample points using an optimization tool. A standard Jominy test of AISI 52100 bearing steel is used to investigate the feasibility and reliability of the method. Three optimization parameters for each IT diagram curve are mathematically applied to the modified Kirkaldy model. These p

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M, Baskaran, Vijayakumar KCK, and Bharathiraja Moorthy. "Experimental investigations of Jominy End Quench test using CuO nanofluids." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 10 (2017): 4455–64. http://dx.doi.org/10.24297/jac.v12i10.5248.

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Nanofluids are the new class of quenching medium with colloidal suspensions of nanoparticles in base fluids, which improves the heat transfer characteristics. The present work has been focused on the quenching effect of mild steel and EN-8 steel with nanoparticles dispersed quenching medium. The different volume concentrations of nanofluids have been prepared by adding CuO nanoparticles with the average diameter of less than 50 nm in distilled water. Three volume concentrations (0.01%, 0.05% and 0.1%) of nanofluids have been prepared. EN8 and mild steel rod have machined as per Jominy end quen

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Quiñones, Facundo, Fernando D. Carazo, Virginia H. Aranda, and Manuel Sánchez. "Desarrollo de una herramienta computacional para la predicción de la dureza en los aceros AISI 1040 y 4140 tratados térmicamente." Revista Iberoamericana de Ingeniería Mecánica 22, no. 1 (2018): 55–68. http://dx.doi.org/10.5944/ribim.22.1.42326.

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En este trabajo se presenta un modelo termo-metalúrgico con el cual puede simularse las transfor- maciones difusionales y martensítica de la austenita en los ace ros AISI 1040 y 4140 enfriados a diferentes velo- cidades. Las transformaciones de fase difusivas se simulan con los modelos de Kirkaldy- Venugopalan y Li et al..la transformación ma rtensítica se simula implementando la fór mula de Koistinen-Marburger. Los modelos metalúrgicos se acoplan a un modelo térmico resuelto mediante e l método de los elementos finitos. Los resulta- dos numéricos obtenidos son comp arados con las curvas de en

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Priyanto, Kaleb, Martinus Heru Palmiyanto, Bambang Hari Priyambodo, and Edi Cahyono. "STUDI VARIASI TEMPERATUR HARDENING TERHADAP KEKERASAN BAJA AISI 4340 MELALUI JOMINY TEST." Teknika 8, no. 1 (2023): 1–8. http://dx.doi.org/10.52561/teknika.v8i1.205.

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Baja AISI 4340 merupakan salah satu material yang dipilih sebagai bahan pembuatan komponen mesin. Bagian-bagian mesin seperti batang torak, poros, maupun roda gigi rentan terhadap gesekan dan tekanan. Gesekan dan tekanan yang diterima oleh komponen mesin akan menghasilkan deformasi, sehingga diperlukan perlakuan panas (heat treatment) untuk meningkatkan ketahanan fisis material baja. Penelitian ini bertujuan untuk mengetahui tingkat kekerasan material Baja AISI 4340 melalui pengujian jominy dengan variasi temperatur hardening. Empat buah spesimen Baja AISI 4340 disiapkan sebagai sampel uji di

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Fong, H. S. "Further observations on the Jominy end quench test." Journal of Materials Processing Technology 38, no. 1-2 (1993): 221–25. http://dx.doi.org/10.1016/0924-0136(93)90198-f.

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Harjuma and Simon Parekke. "ANALISIS PENGARUH VARIASI TEMPERATUR BAJA AISI 1018 TERHADAP KEKERASAN DENGAN METODE JOMINY TEST." DINAMIKA: Jurnal Ilmiah Teknik Mesin 10, no. 2 (2019): 53–58. https://doi.org/10.5281/zenodo.3066849.

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<em>Hardenability of steel is an important guide to determine the pattern of heat behavior and the nature of the material to be heat-treated in the production of components. One way to determine steel hardenability is by using Jominy test method. This study aims to determine the hardness of the AISI 1018 steel by varying temperature in heat treatment. Hardness test was conducted using the Rockwell method (HRA) by varying the heating temperature to 700 °C, 800 °C and 900 °C. The material used was AISI 1018 steel and water as a cooling medium. The standard for making specimens refers

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Azmal, Azmal, Dwi Handoko, Masril Masril, and Eligius Ilhamdi. "PENGARUH VARIASI TEMPERATUR AUSTENIT PENGUJIAN JOMINY TEST PADA SIFAT HARDENABILITY BAJA ST 90." Jurnal Vokasi 16, no. 2 (2021): 74–79. http://dx.doi.org/10.31573/vokasi.v16i2.403.

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The purpose of this research is to obtain information about the hardness value (hardening) and changes in microstructure as well as changes in the properties of the material at a temperature variation of 600℃ to 900℃. The method used in this study is an experimental method, where the material used is ST.90 steel, and Jominy testing. 5 samples were made at each temperature 22℃, 600℃, 700℃, 800℃, and 900℃ with the type of heat treatment in the hardening process. The test results for Vickers hardness decreased by an average of 33.99 HV or 31% and the carbon content decreased by an average of 0.19

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Kartikasari, Ratna, Soekrisno Soekrisno, M. Noer Ilman, and Suyitno Suyitno. "Hardenability and corroson resistance of as cast Fe-9Al-0,6C alloy." Material Science Research India 7, no. 1 (2010): 107–14. http://dx.doi.org/10.13005/msri/070112.

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On the basis of economic considerations, Fe-Al-C alloy could be a good candidate for replacing some of the conventional stainless steel. Wherein, Al is used to replace the expensive alloy element in conventional Fe-Cr-C system. The aim of the research is to investigate harden ability and corrosion resistance of Fe-9Al-0,6C in the NaCl and H2SO4 solution. Thirty five kilograms of Fe-Al-C were prepared from mild steel scrap, high purity aluminium, and Fe-C. The alloy was prepared in an induction furnace under an argon atmosphere. Jominy test and microstructure were examined. And, the corrosion r

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Maisuradze, Mikhail V., and Alexandra A. Kuklina. "Numerical and Experimental Investigation of the Heat Treated Steel Part Microstructure and Hardness." Materials Science Forum 946 (February 2019): 346–50. http://dx.doi.org/10.4028/www.scientific.net/msf.946.346.

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The approach for coupled experimental and numerical estimation of the heat treated steel part microstructure and hardness is presented. The method is based on the investigation of the austenite transformation in a steel during continuous cooling, Jominy hardenability test and numerical modeling of a quenching process. The presented approach is verified by estimation of the 20CrMo5 steel gear shaft microstructure and hardness. The estimated results are in good agreement with the experimental ones.

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Colla, V., L. M. Reyneri, and M. Sgarbi. "Neuro-wavelet parametric characterization of Jominy profiles of steels." Integrated Computer-Aided Engineering 7, no. 3 (2000): 217–28. http://dx.doi.org/10.3233/ica-2000-7303.

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Lund, T., U. Sabelström, and R. Leppänen. "Messung, Voraussage und Steuerung der Jominy-Härtbarkeit von Einsatzstählen." HTM Journal of Heat Treatment and Materials 43, no. 4 (1988): 200–207. http://dx.doi.org/10.1515/htm-1988-430405.

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PIETRZYK, M., and R. KUZIAK. "Computer aided interpretation of results of the Jominy test." Archives of Civil and Mechanical Engineering 11, no. 3 (2011): 707–22. http://dx.doi.org/10.1016/s1644-9665(12)60111-3.

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Qamar, Sayyad Basim. "Manufacturability evaluation: a CFD approach for Jominy hardenability test." Materials and Manufacturing Processes 33, no. 16 (2018): 1881–88. http://dx.doi.org/10.1080/10426914.2018.1512129.

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Newkirk, J. W., and D. S. MacKenzie. "The Jominy End Quench for Light-Weight Alloy Development." Journal of Materials Engineering and Performance 9, no. 4 (2000): 408–15. http://dx.doi.org/10.1361/105994900770345809.

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Bocchini, G. F., B. Rivolta, A. Baggioli, M. Giuseppina Ienco, and M. R. Pinasco. "Jominy test applied to PM steels for heat treatment." Powder Metallurgy 49, no. 2 (2006): 118–24. http://dx.doi.org/10.1179/174329006x120591.

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Hömberg, D. "A numerical simulation of the jominy end-quench test." Acta Materialia 44, no. 11 (1996): 4375–85. http://dx.doi.org/10.1016/1359-6454(96)00084-5.

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Muhammad-Bako, Zainab, Oyebamiji Muideen Oladele, Yusuf Aliyu, and Abiola Abdullateef. "Design and Development of a Jominy End-Quench Apparatus." FUOYE Journal of Engineering and Technology 9, no. 3 (2024): 464–69. https://doi.org/10.4314/fuoyejet.v9i3.14.

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This study describes the design, fabrication, and testing of an end-quench apparatus for Jominy hardenability testing of steel according to ASTM A255-10 standards. This design aims to improve on previous designs which are heavy resulting in difficulty in mobility of the apparatus, inadequate water circulation, less compact of the entire system and unreliable power supply. This apparatus design incorporates a quenching chamber, frame, reservoir, drainage tanks, quenchant channel, pump, and battery. Material selection prioritized performance and cost-effectiveness. Each component was built to st

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