Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron

Vinayak Dakre; D. R. Peshwe; S. U. Pathak; Ajay Likhite

doi:10.1007/s12613-018-1625-4

Volume 25 Issue 7

Jul. 2018

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文章导航 > 矿物冶金与材料学报（英文） > 2018 > 25(7): 770-778

Vinayak Dakre, D. R. Peshwe, S. U. Pathak, and Ajay Likhite, Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron, Int. J. Miner. Metall. Mater., 25(2018), No. 7, pp. 770-778. https://doi.org/10.1007/s12613-018-1625-4

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Vinayak Dakre, D. R. Peshwe, S. U. Pathak, and Ajay Likhite, Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron, Int. J. Miner. Metall. Mater., 25(2018), No. 7, pp. 770-778. https://doi.org/10.1007/s12613-018-1625-4

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研究论文

Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron

Department of Metallurgical & Materials Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India

通讯作者:
Vinayak Dakre E-mail: vinayakdakre2007@gmail.com

中文摘要

The wear resistances of austempered ductile iron (ADI) were improved through introduction of a new phase (carbide) into the matrix by addition of chromium. In the present investigation, low-carbon-equivalent ductile iron (LCEDI) (CE=3.06%, and CE represents carbon-equivalent) with 2.42% chromium was selected. LCEDI was austenitized at two different temperatures (900 and 975℃) and soaked for 1 h and then quenched in a salt bath at 325℃ for 0 to 10 h. Samples were analyzed using optical microscopy and X-ray diffraction. Wear tests were carried out on a pin-on-disk-type machine. The effect of austenization temperature on the wear resistance, impact strength, and the microstructure was evaluated. A structure–property correlation based on the observations is established.

关键词:

low carbon equivalent ductile iron (LCEDI);
carbidic austempered ductile iron (CADI);
wear test;
austenitization temperature;
impact strength

Research Article

Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron

+ Author Affiliations

Abstract

Abstract

The wear resistances of austempered ductile iron (ADI) were improved through introduction of a new phase (carbide) into the matrix by addition of chromium. In the present investigation, low-carbon-equivalent ductile iron (LCEDI) (CE=3.06%, and CE represents carbon-equivalent) with 2.42% chromium was selected. LCEDI was austenitized at two different temperatures (900 and 975℃) and soaked for 1 h and then quenched in a salt bath at 325℃ for 0 to 10 h. Samples were analyzed using optical microscopy and X-ray diffraction. Wear tests were carried out on a pin-on-disk-type machine. The effect of austenization temperature on the wear resistance, impact strength, and the microstructure was evaluated. A structure–property correlation based on the observations is established.
- low carbon equivalent ductile iron (LCEDI);
- carbidic austempered ductile iron (CADI);
- wear test;
- austenitization temperature;
- impact strength

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References

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Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron

中文摘要

Effect of austenitization temperature on microstructure and mechanical properties of low-carbon-equivalent carbidic austempered ductile iron

Abstract

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