Application of thermodynamics in designing of advanced automotive steels

doi:10.1007/s40436-016-0156-3

Advances in Manufacturing ›› 2016, Vol. 4 ›› Issue (4): 340-347.doi: 10.1007/s40436-016-0156-3

Application of thermodynamics in designing of advanced automotive steels

Lin Li, Hu Jiang

School of Materials Science & Engineering, Shanghai University, Shanghai 200444, Shanghai, People's Republic of China

收稿日期:2016-07-25 修回日期:2016-09-28 出版日期:2016-12-25 发布日期:2016-12-25
通讯作者: Lin Li, liling@shu.edu.cn E-mail:liling@shu.edu.cn
基金资助:
This work is financially supported by the National Key Basic Research Development Project of China (Grant No. 2010CB630802);the National Natural Science Foundation of China (Grant Nos.50934011 and 50971137) and Shanghai University.

Application of thermodynamics in designing of advanced automotive steels

Lin Li, Hu Jiang

School of Materials Science & Engineering, Shanghai University, Shanghai 200444, Shanghai, People's Republic of China

Received:2016-07-25 Revised:2016-09-28 Online:2016-12-25 Published:2016-12-25
Supported by:
This work is financially supported by the National Key Basic Research Development Project of China (Grant No. 2010CB630802);the National Natural Science Foundation of China (Grant Nos.50934011 and 50971137) and Shanghai University.

摘要/Abstract

摘要：

Advanced automotive steels were designed with alloy concept and thermodynamics. Several phases were taken for the designing of transformation induced plasticity(TRIP) steels in accordance with the practical metallurgy process. Al was firstly chosen to substitute Si for improving galvanizing property, afterwards P was proved to be another alternative of Si by thermodynamic calculation and kinetic estimation. Thermodynamic investigation in the third phase revealed the effective function of Al to increase carbon solubility in austenite as well as TRIP effect of steel. Stack fault energy was calculated, in combination with heat treatment and microstructure measurement, which led to a successful composition designing of twin induced plasticity (TWIP) steel.

关键词: Thermodynamics, Phase diagram, Materials designing, Advanced steel

Abstract:

Key words: Thermodynamics, Phase diagram, Materials designing, Advanced steel

Lin Li, Hu Jiang. Application of thermodynamics in designing of advanced automotive steels[J]. Advances in Manufacturing, 2016, 4(4): 340-347.

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Application of thermodynamics in designing of advanced automotive steels

Application of thermodynamics in designing of advanced automotive steels

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