Log in

Relevant bibliographies by topics / Vermichar / Journal articles

To see the other types of publications on this topic, follow the link: Vermichar.

Journal articles on the topic 'Vermichar'

Author: Grafiati

Published: 7 June 2025

Last updated: 16 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Vermichar.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Rommel, U. Sacramento. "Properties of vermichar derived from agricultural waste and its potential supplement for lowland rice." International Journal of Agronomy and Agricultural Research (IJAAR) 24, no. 6 (2024): 1–14. https://doi.org/10.5281/zenodo.14010822.

Full text

Abstract:

This study evaluates the nutrient composition of vermichar and its impact on soil properties and rice crop productivity. Vermichar, a biochar produced from organic waste and vermicompost, demonstrates a nutrient profile with 11.86% organic matter, 0.59% nitrogen, 4.41% phosphorus, 0.45% potassium, and a combined NPK value of 5.33%, suggesting its potential as an effective soil amendment. The application of vermichar at 10 bags per hectare significantly influenced soil pH, increasing it to 7.69 from the control’s 6.15, indicating its strong alkalinizing effect. Additionally, vermichar app

APA, Harvard, Vancouver, ISO, and other styles

2

Rex, Topinio Mendoza. "Growth response and changes of soil chemical properties with application of vermichar in bell pepper production." International Journal of Biosciences (IJB) 25, no. 1 (2024): 50–61. https://doi.org/10.12692/ijb/25.1.50-61.

Full text

Abstract:

This study was conducted to evaluate the efficacy of vermichar as organic soil amendment on bell pepper and its effect on soil chemical properties. The study was laid out using the Randomized Complete Block (RCB) design to test the following treatments: T1-Control, T2-90-60-30 kg NPK, T3-90-60-30 kg NPK plus 5 bags vermichar, T4-90-60-30 kg NPK plus 10 bags vermichar, T5-90-60-30 NPK plus 15 bags vermichar and T6-10 bags vermichar. The experiment was established at the College of Agriculture, Isabela State University, Echague, Isabela from November 2023 to March 2024. Result of the study shows

APA, Harvard, Vancouver, ISO, and other styles

3

Boldyrev, Denis, Sergey Nefed’ev, Ruslan Amirov, and Alexandr Koldin. "Ductile iron with nodular and compact graphite as a rational alternative to malleable cast iron." E3S Web of Conferences 389 (2023): 02019. http://dx.doi.org/10.1051/e3sconf/202338902019.

Full text

Abstract:

There is a need for cast irons with a combined combination of properties in modern conditions. Such properties can be provided by ductile cast iron with nodular and vermicular graphite, which is essentially a hybrid cast iron in terms of microstructure. The article found that ductile iron with nodular and vermicular graphite in terms of its mechanical properties is a rational alternative to malleable cast iron, namely the grade KCh45-6 (GOST 1215-79). Also, the ratio of nodular/vermicular graphite (70…95/5…30%) was determined, which provides the data of mechanical characteristics. Differences

APA, Harvard, Vancouver, ISO, and other styles

4

Kong, Jian, and Lin Che. "The Study of a New Type of Cast Iron Material Used in the Glass Mould." Applied Mechanics and Materials 727-728 (January 2015): 83–86. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.83.

Full text

Abstract:

Develop a new type of alloy cast iron material.Design experimental scheme and research method, choose low tin vermicular cast iron as raw materials, to determine the main alloying element and trace alloying elements, formulate the necessary particularizing alloy. On the basis of strict technology and process, to complete the cast iron smelting, produce vermicular cast iron that has a good comprehensive performance. To observe the metallographic structure of cast iron under a microscope. Finally，test the stretchability of the developed vermicular cast

APA, Harvard, Vancouver, ISO, and other styles

5

Guo, Qiaoqin, Zhong Yang, Ding Guo, et al. "Research on the Oxidation Mechanism of Vermicular Graphite Cast Iron." Materials 12, no. 19 (2019): 3130. http://dx.doi.org/10.3390/ma12193130.

Full text

Abstract:

The oxidation mechanism of vermicular graphite cast iron was studied. The oxidation reaction starts from graphites and diffused slowly. Graphites in vermicular graphite are interconnected, coral-like clusters, providing the main oxidation core and channel. The worm-like graphites on the surface are mostly oxidized and form oxide affected zones. The oxide films are composed of a loose oxide layer with the phases of Fe3O4, Fe2O3, and FeO, and a dense passivation layer with FeO and Fe2SiO4. After oxidation, pearlites in the vermicular graphite cast iron are decomposed into ferrite and cementite a

APA, Harvard, Vancouver, ISO, and other styles

6

Kropivna, Alena, and Olexandr Kuzyk. "Analysis and Harmonization of National and International Quality Standards for Compacted Graphite Cast Irons." Central Ukrainian Scientific Bulletin. Technical Sciences, no. 3(34) (October 2020): 88–95. http://dx.doi.org/10.32515/2664-262x.2020.3(34).88-95.

Full text

Abstract:

Ensuring and coordination of high quality indicators of materials in the foundry industry is necessary in the development of Ukraine's economy. High quality products need to be enshrined in new national standards, harmonized with international and European standards. Thus, the purpose of this work is to analyze national and international standards for quality indicators of vermicular graphite iron and their harmonization with each other. The foundry industry of Ukraine has developed mainly with the use of interstate standards - GOST, which differ significantly from European and international a

APA, Harvard, Vancouver, ISO, and other styles

7

Gumienny, G., M. Dondzbach, and B. Kacprzyk. "Effect of Chromium on the Solidification Process and Microstructure of Vermicular Graphite Cast Iron." Archives of Foundry Engineering 15, no. 3 (2015): 29–34. http://dx.doi.org/10.1515/afe-2015-0054.

Full text

Abstract:

Abstract The paper presents the results of studies of the effect of chromium concentration on the solidification process, microstructure and selected properties of cast iron with vermicular graphite. The vermicular graphite cast iron was obtained by an Inmold process. Studies covered the cast iron containing chromium in a concentration at which graphite is still able to preserve its vermicular form. The effect of chromium on the temperature of eutectic crystallization and on the temperature of the start and end of austenite transformation was discussed. The conditions under which, at a predete

APA, Harvard, Vancouver, ISO, and other styles

8

Fragassa, Cristiano. "Material selection in machine design: The change of cast iron for improving the high-quality Iin woodworking." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 1 (2016): 18–30. http://dx.doi.org/10.1177/0954406216639996.

Full text

Abstract:

This paper analyzes the possibility to substitute the gray iron, traditionally used for the production of relevant parts in woodworking machines, with ductile iron or vermicular iron. A large experimental campaign to determine the mechanical beavior of ductile and vermicular irons respect to tensile, fatigue, and fracture loads was conducted and the microstructures were also analyzed. Results show that ductile or vermicular cast iron in parts and components of machine tools could provide additional stiffness and resistance for the high precision woodworking respect to Gray Iron. A balanced uti

APA, Harvard, Vancouver, ISO, and other styles

9

Ruangchai, Kittikhun, Amporn Wiengmoon, Monnapas Morakotjinda, et al. "Microstructure, Hardness and Wear Properties of Sintered Fe-Mo-Si-C Steels with Spheroidal Graphite Iron/Compacted Graphite Iron-Like." Key Engineering Materials 751 (August 2017): 47–52. http://dx.doi.org/10.4028/www.scientific.net/kem.751.47.

Full text

Abstract:

Sintered Fe-Mo-Si-C steels were prepared from pre-alloyed Fe-0.85Mo powder added with fixed 4wt.% silicon carbide powder and varied graphite powder contents. It was found that the graphite powder addition caused morphological change from black nodular to black vermicular particles and resulted in decrease of black nodular/vermicular particle fraction, increase of pearlite fraction and slight change of ferrite fraction. The black nodular particles were either graphite or Fe-Mo-Si-C/graphite core-shell particles whereas vermicular particles were totally composed of carbon. The microstructural fe

APA, Harvard, Vancouver, ISO, and other styles

10

McMillan, Simon G. "The Microstructure of Vermicular Glaucony." Clays and Clay Minerals 42, no. 1 (1994): 63–70. http://dx.doi.org/10.1346/ccmn.1994.0420108.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Gerasimov, V. N., A. M. Karpova, Ya S. Abuzova, M. S. Skripina, and E. V. Slesareva. "PRIMARY CANCER OF VERMICULAR APPENDIX." Ulyanovsk Medico-biological Journal, no. 2 (June 10, 2019): 89–94. http://dx.doi.org/10.34014/2227-1848-2019-2-89-94.

Full text

Abstract:

Malignant tumor is a nosological group that significantly contributes to morbidity, disability and mortality in various age categories. Colon cancer occupies a leading place among the malignant neoplasms of the gastrointestinal tract. Most often they are localized in the rectosigmoid part of the large intestine. However, there is also a casuistic localization of tumors, e.g. vermicular appendix cancer. There are no specific signs of oncologic process in this area, therefore the diagnosis of this nosology causes considerable difficulties. The article presents a clinical case and pathological di

APA, Harvard, Vancouver, ISO, and other styles

12

Górny, M., and M. Kawalec. "Role of Titanium in Thin Wall Vermicular Graphite Iron Castings Production." Archives of Foundry Engineering 13, no. 2 (2013): 25–28. http://dx.doi.org/10.2478/afe-2013-0030.

Full text

Abstract:

Abstract In this paper the effects of titanium addition in an amount up to 0.13 wt.% have been investigated to determine their effect on the microstructure and mechanical properties of Thin Wall Vermicular Graphite Iron Castings (TWVGI). The study was performed for thinwalled iron castings with 3-5 mm wall thickness and for the reference casting with 13 mm. Microstructural changes were evaluated by analyzing quantitative data sets obtained by image analyzer and also using scanning electron microscope (SEM). Metallographic examinations show that in thin-walled castings there is a significant im

APA, Harvard, Vancouver, ISO, and other styles

13

Roviglione, Alicia N., Alvaro Y. Tesio, Fernando Fungo, and Ricardo W. Gregorutti. "Graphite Dendrites in Cast Iron and Their Fundamental Role in the Control of Morphology to Obtain Aero-Eutectic Graphite." Minerals 11, no. 2 (2021): 109. http://dx.doi.org/10.3390/min11020109.

Full text

Abstract:

This work analyzes the growth of graphite in the eutectic system of gray cast iron, focusing on laminar type A and undercooled type D morphology, and a modified morphology, such as vermicular or compact graphite. The objective of the study is to find an optimal graphite structure, from which a new class of lightweight materials results that has been called aero-eutectic graphite (AEG). The method to obtain AEG consists of dissolving the gray iron ferrous matrix by means of a chemical attack. From experiences of unidirectional solidification, it has been found that laminar graphite grows in a n

APA, Harvard, Vancouver, ISO, and other styles

14

Liu, Yan, and Yan Wang. "Fractal analysis of thermal fatigue crack growth behavior in bionic units of vermicular cast iron." Anti-Corrosion Methods and Materials 69, no. 3 (2022): 217–23. http://dx.doi.org/10.1108/acmm-08-2021-2528.

Full text

Abstract:

Purpose The purpose of this paper is to clarify the growth behavior of fatigue cracks on bionic coupling surface of vermicular cast iron. Design/methodology/approach The thermal fatigue cyclic experiments were carried out on the bionic specimens processed by laser bionic treatment, in which the thermal fatigue was generated by heating at 600°C ± 5°C and cooling at 25°C ± 5°C. The thermal fatigue cracks of bionic units were analyzed using fractal theory. The relation between fractal dimensions of thermal fatigue cracks and thermal fatigue cycles was discussed. Findings The results show that the

APA, Harvard, Vancouver, ISO, and other styles

15

Ivanova, L., and E. Kolotilo. "Bathroom brake circuits with vermicular graphite." Theory and practice of metallurgy, no. 6 (November 20, 2018): 40–49. http://dx.doi.org/10.34185/tpm.6.2018.05.

Full text

Abstract:

The processes of structuring in cast iron of different chemical composition in the range of cooling rates of 0.5 ... 5.5 deg / s, which take place in the roll casting mould, are investigated. Scientifically based theoretical and experimental results were obtained, the set of which allowed to develop highly effective technologies of casting of rolling rolls from cast iron with vermicular graphite with increased operational characteristics. Optimum content of rare earth metal (REM) in roller cast iron with vermicular graphite at different cooling rates was experimentally established. In the low

APA, Harvard, Vancouver, ISO, and other styles

16

Guo, Qiaoqin, Yang Zhong, Tao Dong, Peihu Gao, Yongchun Guo, and Jianping Li. "Effects of vermicular graphite rate on the oxidation resistance and mechanical properties of vermicular graphite iron." Journal of Alloys and Compounds 765 (October 2018): 213–20. http://dx.doi.org/10.1016/j.jallcom.2018.06.236.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Jakubus, Aneta. "Analysis of research on abrasive wear of vermicular cast iron." Journal of Engineering 360 1, no. 1/24 (2024): 5–13. http://dx.doi.org/10.5604/01.3001.0054.8103.

Full text

Abstract:

The paper analyzes and discusses the orientations of researchers regarding the abrasive wear of vermicular cast iron. The analysis was related to the shape of graphite occurrence in cast iron, the change in the matrix and the change in chemical composition, and the impact of these changes on wear under dry and wet friction conditions. Compact graphite cast iron is tested for use in machine and device parts such as cylinders and piston rings, discs, shafts and bearings. It was found that the improvement of abrasive wear of vermicular cast iron is influenced, among others, by the shape of graphi

APA, Harvard, Vancouver, ISO, and other styles

18

Kovaleva, Elizaveta, Håkon O. Austrheim, and Urs S. Klötzli. "Interpretation of zircon coronae textures from metapelitic granulites of the Ivrea–Verbano Zone, northern Italy: two-stage decomposition of Fe–Ti oxides." Solid Earth 8, no. 4 (2017): 789–804. http://dx.doi.org/10.5194/se-8-789-2017.

Full text

Abstract:

Abstract. In this study, we report the occurrence of zircon coronae textures in metapelitic granulites of the Ivrea–Verbano Zone. Unusual zircon textures are spatially associated with Fe–Ti oxides and occur as (1) vermicular-shaped aggregates 50–200 µm long and 5–20 µm thick and as (2) zircon coronae and fine-grained chains, hundreds of micrometers long and ≤ 1 µm thick, spatially associated with the larger zircon grains. Formation of such textures is a result of zircon precipitation during cooling after peak metamorphic conditions, which involved: (1) decomposition of Zr-rich ilmenite to Zr-b

APA, Harvard, Vancouver, ISO, and other styles

19

Pan, An Xia. "Study on the Casting Defects of Vermicular Cast Iron Brake Disc and the Countermeasures." Advanced Materials Research 472-475 (February 2012): 2645–49. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.2645.

Full text

Abstract:

Brake disc is the most important component in disc braking device. It transforms the kinetic energy of vehicles into frictional heat energy through the friction with brake lining and dissipates the heat into the surrounding environment. This paper focuses on the analysis of the shrinkage cavity and porosity as a major casting defect in vermicular cast iron brake disc and the explanation of its causes including the hazardous elements of pig iron, vermicular technique, and the quantity of curing agent to be added. Countermeasures to solve these problems are also proposed to effectively increase

APA, Harvard, Vancouver, ISO, and other styles

20

Nam, Ki Woo, and Soo Chul Lee. "A Study on Wear Properties of GCV Material with DLC Coating." Applied Mechanics and Materials 470 (December 2013): 7–10. http://dx.doi.org/10.4028/www.scientific.net/amm.470.7.

Full text

Abstract:

Compacted vermicular (CV) graphitization cast iron is the name given to graphitization cast iron where the shape of the graphite looks like a vermicular. Castability and the thermal conductivity of CV graphitization cast iron is similar to those of Grey iron, while the strength of CV graphitization cast iron is similar to that of ductile iron. The thin film of diamond-like carbon (DLC) is one of the amorphous carbon thin films. It has various characteristics which are similar to those of diamond, such as high hardness, lubricity, abrasion resistance, chemical stability, electrical insulating p

APA, Harvard, Vancouver, ISO, and other styles

21

Tang, Yan, Hanying Mao, Chunhua He, et al. "Characterization on vermicular graphite rate and tensile strength in vermicular graphite cast iron based on nonlinear ultrasonic technique." Ultrasonics 138 (March 2024): 107240. http://dx.doi.org/10.1016/j.ultras.2024.107240.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Yilmaz, Rifat, Fatma Bayata, and Nuri Solak. "High Temperature Oxidation Behavior of High Al-Si Alloyed Vermicular Graphite Cast Iron for Internal Combustion Engine’s Hot-End Exhaust Components." Metals 14, no. 5 (2024): 574. http://dx.doi.org/10.3390/met14050574.

Full text

Abstract:

This study investigated the influence of high silicon (4.2 wt%) and varying aluminum (3.5–4.8 wt%) content on the high temperature oxidation behavior and thermophysical properties of SiMoAl vermicular graphite cast iron for hot-end exhaust components. Isothermal oxidation tests at 800 °C and nonisothermal oxidation tests in a dry-air atmosphere were conducted on SiMo nodular iron, along with two SiMoAl vermicular graphite cast iron variants alloyed with 3.5 wt% Al and 4.8 wt% Al. The investigations revealed the formation of a thin duplex layer of oxide scale, consisting of an iron-rich externa

APA, Harvard, Vancouver, ISO, and other styles

23

Guo, Daoyou, Zhenping Wu, Peigang Li, et al. "Magnetic anisotropy and deep ultraviolet photoresponse characteristics in Ga2O3:Cr vermicular nanowire thin film nanostructure." RSC Advances 5, no. 17 (2015): 12894–98. http://dx.doi.org/10.1039/c4ra13813a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Ivnev, Alexander Andreevich, Vladimir Anatoljevich Zhukov, Yuriy Evgenievich Khryashchyev, and Alexander Ivanovich Yamanin. "Thermal tension of cylinder covers of transport diesel engines converted to marine diesels." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2021, no. 2 (2021): 55–64. http://dx.doi.org/10.24143/2073-1574-2021-2-55-64.

Full text

Abstract:

The article describes the characteristics of thermal loading of the cylinder covers of transport diesel engines during their conversion to marine diesels. The engines of the CHN14/14 type produced by the Yaroslavl Motor Plant are proposed as promising for use in marine power plants. A special feature of the engine design is the individual four-valve cylinder heads, which have a complex geometric shape. The conversion of automobile engines, the cylinder heads of which were made of aluminum alloys, to marine ones is accompanied by an increase in the degree of their acceleration. The cylinder hea

APA, Harvard, Vancouver, ISO, and other styles

25

Yue, Chen, Shang Guan Bao, and Ying Yu Huang. "Research on Tribological Properties of Cast Iron at High-Speed Dry Sliding Condition." Advanced Materials Research 936 (June 2014): 2063–67. http://dx.doi.org/10.4028/www.scientific.net/amr.936.2063.

Full text

Abstract:

The friction and wear properties of cast iron with different graphite morphologies and matrix microstructure were investigated at high speed dry sliding against GCr15 steel on the MMS-1G high-speed tribometer apparatus. The various wear micro-mechanisms and tribo-metallographic phases were studied by using scanning electron microscopy. The results show that as friction material, vermicular iron exhibits excellent comprehensive tribological properties. The friction coefficient of cast iron sliding against GCr15 decreases while the wear rate increases with the increase of sliding speed, friction

APA, Harvard, Vancouver, ISO, and other styles

26

Khryashchev, Yu E., A. A. Ivnev, A. I. Yamanin, A. A. Shevtsov, and O. S. Varenykh. "Thermal and stress-strain state of the cast-iron cylinder head." Transactions of the Krylov State Research Centre S-I, no. 1 (2021): 103–5. http://dx.doi.org/10.24937/2542-2324-2021-1-s-i-103-105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Lin, Xiaohang, Minghao Hua, Xuelei Tian, et al. "Growth mechanisms of vermicular graphite in cast iron." Materials Today Communications 29 (December 2021): 102993. http://dx.doi.org/10.1016/j.mtcomm.2021.102993.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Bouali, Ichrak. "vermicular enterobius: incidental intraoperative finding during laparoscopic appendectomy." American Journal of Medical and Clinical Research & Reviews 03, no. 11 (2024): 01–04. https://doi.org/10.58372/2835-6276.1234.

Full text

Abstract:

Acute appendicitis is the most common intra-abdominal pathology requiring emergency surgery. The etiology of acute appendicitis includes both infectious and non-infectious causes. Although parasitic diseases are rare in developed countries, they are more common in developing countries. Pinworm is a highly contagious infection, considered to be the most common helminthic infection. The association of this parasitic infestation with the pathogenesis of acute appendicitis has been studied for many years and is still unclear. We report the case of a patient with symptoms of acute appendicitis in w

APA, Harvard, Vancouver, ISO, and other styles

29

Xiong, Yan, Wei Liu, and Ling Wang. "Electron-beam-induced surface reconstructing in vermicular alumina." Journal of Wuhan University of Technology-Mater. Sci. Ed. 32, no. 4 (2017): 888–92. http://dx.doi.org/10.1007/s11595-017-1685-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Pang, Ming, Wei He, Chang Zhen Liu, Xu Lan Wang, and Xue Bin Kang. "Surface Hardening of a Vermicular Cast Iron Used for Integral Molding Valve Seat by High Power Laser." Applied Mechanics and Materials 456 (October 2013): 474–77. http://dx.doi.org/10.4028/www.scientific.net/amm.456.474.

Full text

Abstract:

Surface hardening intergal molding valve seat of a vermicular cast Iron was done by Nd:YAG high power laser. The effect of laser parameters on microstructure, hardness and surface quality were conducted by scanning electron microscopy (SEM) ,optical microscopy (OM) and microhardness tester. The results show that The hardening layer of free defect can be obtained with suitable laser processing conditions. The shape of crescent can be observed in the laser hardening layer.The hardening layer consists of melted zone and heat-affected zone.Ledeburite, martensite and remainder austenite can be obse

APA, Harvard, Vancouver, ISO, and other styles

31

Soiński, M. S., P. Kordas, K. Skurka, and A. Jakubus. "Investigations of Ferritic Nodular Cast Iron Containing About 5-6% Aluminium." Archives of Foundry Engineering 16, no. 4 (2016): 141–46. http://dx.doi.org/10.1515/afe-2016-0099.

Full text

Abstract:

Abstract The work presents results of investigations concerning the production of cast iron containing about 5-6% aluminium, with the ferritic matrix in the as-cast state and nodular or vermicular graphite precipitates. The examined cast iron came from six melts produced under the laboratory conditions. It contained aluminium in the amount of 5.15% to 6.02% (carbon in the amount of 2.41% to 2.87%, silicon in the amount of 4.50% to 5.30%, and manganese in the amount of 0.12% to 0.14%). After its treatment with cerium mixture and graphitization with ferrosilicon (75% Si), only nodular and vermic

APA, Harvard, Vancouver, ISO, and other styles

32

Firican, Ciprian, and Iulian Riposan. "Graphite Phase Characteristics in Compacted/Vermicular Graphite Cast Iron Inoculated in the Mould." Advanced Materials Research 1128 (October 2015): 72–79. http://dx.doi.org/10.4028/www.scientific.net/amr.1128.72.

Full text

Abstract:

The objective of this research paper is to examine the effects of adding an oxy-sulphide inoculant enhancer alloy [OS-IE = S,O,Al,Mg-CaSi alloy] to a conventional CaBa-FeSi alloy and to examine the graphite phase characteristics in these irons, as affected by different in the mould inoculants, for resin sand mould castings. The surface layer of all the Mg,RE-FeSi treated compacted / vermicular graphite cast iron samples with 0.018 – 0.023% Mgresis influenced by S diffusion from Furan Resin–P-Toluol Sulphonic Acid (PTSA). The graphite phase is strongly influenced in this surface layer. Inoculat

APA, Harvard, Vancouver, ISO, and other styles

33

Guo, Changliang, Duo Fang, Chengzong Wang, et al. "Ultrasonic flaw detection spectrogram characterization of vermicular graphite cast iron engine cylinder head." Journal of Physics: Conference Series 1996, no. 1 (2021): 012005. http://dx.doi.org/10.1088/1742-6596/1996/1/012005.

Full text

Abstract:

Abstract The defects formed in the manufacture of the vermicular graphite cast iron engine cylinder head seriously affect the operation of the engine, which is necessary to detect. Ultrasonic testing is a non-destructive testing method that has the advantages of quick response, high resolution, and high security. In this paper, various types of specimens are prepared corresponding to different types of actual defects in the vermicular iron cylinder head. An ultrasonic A-scan system was built to test the specimens. The short-time Fourier transform, the continuous wavelet transform, the empirica

APA, Harvard, Vancouver, ISO, and other styles

34

Soiński, M. S., and A. Jakubus. "Initial Assessment of Abrasive Wear Resistance of Austempered Cast Iron with Vermicular Graphite." Archives of Metallurgy and Materials 59, no. 3 (2014): 1073–76. http://dx.doi.org/10.2478/amm-2014-0183.

Full text

Abstract:

Abstract The work compares the abrasive wear resistance of cast iron containing vermicular graphite, measured in the as-cast state and after austempering carried out at 290°C, 340°C, or 390°C. Theexaminations were performed by means of the T-01M tribological tester using the pin-on-disc configuration. Specimens used for examinations were taken from the end tabs of the tensile specimens, these being cut out of the test walls of the double-leg keel block test castings. Examinations proved that the austempering process increases the abrasive wear resistance of vermicular cast iron by several time

APA, Harvard, Vancouver, ISO, and other styles

35

De Bona, J., N. Dani, J. M. Ketzer, and L. F. De Ros. "Dickite in shallow oil reservoirs from Recôncavo Basin, Brazil: diagenetic implications for basin evolution." Clay Minerals 43, no. 2 (2008): 213–33. http://dx.doi.org/10.1180/claymin.2008.043.2.06.

Full text

Abstract:

AbstractFluvial and aeolian sandstones of the Sergi Formation are the most important reservoirs of the Recôncavo Basin, Brazil. Optical and scanning electron microscopy, X-ray diffraction and infrared spectroscopy revealed the occurrence of dickite, a clay mineral indicative of deep burial conditions (T >100ºC), in the shallow Buracica (630–870 m) and Água Grande (1300–1530 m) oilfields. Vermicular dickite replaces K-feldspar and plagioclase grains, and fills intra- and inter-granular pores. Its vermicular habit is a product of pseudomorphic kaolinite transformation during burial. The prese

APA, Harvard, Vancouver, ISO, and other styles

36

Laneri, K., P. Bruna, and D. Crespo. "Microstructural characterisation and kinetics modelling of vermicular cast irons." Materials Science and Technology 24, no. 10 (2008): 1214–21. http://dx.doi.org/10.1179/174328407x168838.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Murray, Rachel. "Vermicular Origins: The Creative Evolution of Samuel Beckett’s Worm." Journal of Literature and Science 9, no. 2 (2016): 19–35. http://dx.doi.org/10.12929/jls.09.2.02.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Yang, Li-hui, Xiang-min Zheng, and Wei Ye. "Sedimentary environment of vermicular red clay in South China." Journal of Mountain Science 14, no. 3 (2017): 513–26. http://dx.doi.org/10.1007/s11629-016-3973-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Cao, Wenbin, Ruiyun Guo, Sanxu Pu та ін. "Disperse Equiaxed α-Al2 O3 Nanoparticles Without Vermicular Microstructure". Journal of the American Ceramic Society 99, № 6 (2016): 1911–16. http://dx.doi.org/10.1111/jace.14147.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Murthy, V. S. R., Kishore, and S. Seshan. "Vermicular graphite cast iron—current state of the art." Sadhana 8, no. 4 (1985): 361–72. http://dx.doi.org/10.1007/bf02835611.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Skrbek, B., O. Bouškab, K. Nedělová, and J. Heunisch. "Verification of Modification Effect on Prototype Castings from GJV Using Ultrasound Checking." Archives of Foundry Engineering 12, no. 3 (2012): 105–10. http://dx.doi.org/10.2478/v10266-012-0091-0.

Full text

Abstract:

Abstract Reason for and risks of using of cast iron with vermicular graphite for typical construction parts. Ultrasound checking of graphite shape. Factors influencing plausibility of result. Difference between laboratory and operation application. Roughness, parallelism, stability and size dimension of walls. Conditions, proposals for simplification and productivity enhancement of castings checking. Recommendation.

APA, Harvard, Vancouver, ISO, and other styles

42

Petarporn, Pragassak, Gobboon Lothongkum, Ekkarut Viyanit, and Amnuaysak Chianpairot. "Effects of TIG Pulse Current and Nitrogen Content in Argon Shielding Gas on Microstructure and Mechanical Properties of 15Cr-4Ni-8Mn-1.3Cu Stainless Steel Weld Metal." Advanced Materials Research 931-932 (May 2014): 306–11. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.306.

Full text

Abstract:

The TIG pulse welding of 15Cr-4Ni-8Mn-1.3Cu austenitic stainless steel at pulse currents of 130 and 160 A with Argon shielding gases containing 0%, 5% and 10% (v/v) Nitrogen was investigated. The effects of pulse current and Nitrogen content in Argon shielding gas on the microstructure and mechanical properties of weld metal were studied. Based on the results found in this study, the nitrogen content in weld metal was found to increase with increasing nitrogen content in argon shielding gas and pulse current. With the addition of nitrogen in Argon shielding gas, the morphology of delta-ferrite

APA, Harvard, Vancouver, ISO, and other styles

43

Diao, Xiao Gang, Zhi Liang Ning, Fu Yang Cao, Shan Zhi Ren, and Jian Fei Sun. "Graphite Morphology Evolution during Melt Holding of Ductile Iron." Key Engineering Materials 457 (December 2010): 31–36. http://dx.doi.org/10.4028/www.scientific.net/kem.457.31.

Full text

Abstract:

Evolution processes of graphite morphology in ductile iron were investigated by quenching specimens during a long time holding of iron melt in a Ar atmosphere. Results show that spheroidal graphite is only observed at the early stage of melt holding. There are no evident changes in morphology of spheroidal graphite with increasing holding time up to 180 min. Subsequently chunky graphite precipitates directly after holding for 240 min as spheroidizing ability (Mg residual and RE residual) is insufficient. The number and size of eutectic chunky graphite cells increase with prolonged holding time

APA, Harvard, Vancouver, ISO, and other styles

44

Ермолаев, А. Г. "ОСВОЕНИЕ СОВРЕМЕННЫХ МАРОК ЧУГУНА ДЛЯ ОТЛИВКИ ДЕТАЛЕЙ АВТОМОБИЛЕЙ АВТОВАЗА". Metallurg, № 3-2025 (25 березня 2025): 25–29. https://doi.org/10.52351/00260827_2025_3_25.

Full text

Abstract:

Показано развитие чугунолитейного производства АО «АВТОВАЗ», опыт внедрения серого высокопрочного чугуна с шаровидным и вермикулярным графитом для отливок двигателей, шасси автомобилей LADA. The article shows the development of the cast iron foundry of JSC AVTOVAZ. Experience in the implementation of gray, high-strength cast iron with spheroidal and vermicular graphite for casting engine parts, chassis of LADA cars.

APA, Harvard, Vancouver, ISO, and other styles

45

Tokarev, A. A., D. A. Boldyrev, B. A. Kulakov, and L. I. Popova. "Control of Compacted Graphite Iron Production Process by Using the Thermal Analysis System." Materials Science Forum 1052 (February 3, 2022): 319–25. http://dx.doi.org/10.4028/p-05co57.

Full text

Abstract:

The objective of this paper is to describe the major principles of controlling production of compacted graphite iron, aka vermicular graphite iron, using thermal analysis (TA) of cast iron melts as a means of control. The paper goes on to show the engineering implementation of the above principles and the results of how one of a Russian foundry applied them.

APA, Harvard, Vancouver, ISO, and other styles

46

Dutta, Sreya, Taek Bo Kim, Timothy Krentz, Richard P. Vinci, and Helen M. Chan. "Sol-Gel-Derived Single-Crystal Alumina Coatings with Vermicular Structure." Journal of the American Ceramic Society 94, no. 2 (2011): 340–43. http://dx.doi.org/10.1111/j.1551-2916.2010.04307.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Köklü, Uğur, Abdullah Sadık Tazegül, Fatih Serin, and Gültekin Basmacı. "Investigation of the Effects of Wafer-Baking Plates on Thermal Distribution, Wafer Thickness, and Wafer Color Distribution." Applied Sciences 15, no. 1 (2025): 466. https://doi.org/10.3390/app15010466.

Full text

Abstract:

Wafer-baking ovens are machines that bake liquid batter by heating the interconnected cast plates in a gas oven. The plates in contact with the wafer batter are generally made of the cast material. Although there are many studies on the contents in the recipes of wafer products and the effects of the additives included in the recipes on the quality of the wafer sheet, there are few studies on the effects of the material type of the wafer-baking plate on the baking process. In this study, the thermal distribution of two baking plates made of different materials (GG-25 gray cast iron and GJV-350

APA, Harvard, Vancouver, ISO, and other styles

48

Erickson, Dwight D., Paul G. Kotula, and C. Barry Carter. "Thin-film substrates for the study of solid-state transformations." Proceedings, annual meeting, Electron Microscopy Society of America 52 (1994): 532–33. http://dx.doi.org/10.1017/s0424820100170396.

Full text

Abstract:

A popular route to obtain α-alumina (α-Al2O3) ceramics is by the use of sol-gel chemistry in which boehmite (γ-AlOOH) is dispersed in water to form a colloidal solution which is later dried and heat treated. Heat treatment of the boehmite produces a series of metastable transitional aluminas prior to the formation of α-alumina at approximately 1200°C. The transformation sequence has associated with it a large volume decrease with significant pore formationand entrapment which results in a poorly densified, vermicular α-alumina product. The use of nucleating agents or seeds such as α-alumina or

APA, Harvard, Vancouver, ISO, and other styles

49

Liu, Yan, Hong Zhou, Chun Yan Yang, Chao Meng, Chuan Wei Wang, and Lu Quan Ren. "Microstructure Change of Bionic Units on Vermicular Cast Iron Processed by Laser in Thermal Fatigue Tests." Advanced Materials Research 562-564 (August 2012): 156–59. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.156.

Full text

Abstract:

This paper focuses on the microstructure change of bionic units, processed by the bionic laser, on vermicular cast iron, during the thermal fatigue tests. The results show that the microstructure of bionic units is uneven, and the thermal fatigue first occurs in the region with coarser microstructure on the surface of bionic units; the thermal fatigue failure mode of the bionic units is oxidizing, fracturing and peeling layer by layer.

APA, Harvard, Vancouver, ISO, and other styles

50

Bossert, J., and E. Fidancevska. "Effect of mechanical activation on the sintering of transition nanoscaled alumina." Science of Sintering 39, no. 2 (2007): 117–25. http://dx.doi.org/10.2298/sos0702117b.

Full text

Abstract:

Consolidation of transition nanoscaled alumina (?, ?, ?, and ?-phase) at P=500 MPa and T=1500?C, gave compacts with density of 70%TD and a vermicular structure. After mechanical activation by attriting, the transformation rate of ?-Al2O3? ?-Al2O3 ? ?-Al2O3 ? ?-Al2O3 was reduced from 1126 to 1079oC. The density of the sintered compacts at 1500oC was 96%TD. The ?-Al2O3 microstructure exhibited a grain size distribution from 100 to 900 nm.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!