STT and DTT Diagrams of Austenitic Cr–Mn–Ni As‐Cast Steels and Crucial Thermodynamic Aspects of γ → α′ Transformation
STT and DTT Diagrams of Austenitic Cr–Mn–Ni As‐Cast Steels and Crucial Thermodynamic Aspects of γ → α′ Transformation
复制标题
奥氏体 CrâMnâNi 铸钢的 STT 和 DTT 图以及 γ 转变的关键热力学方面
DOI:
10.1002/srin.201100267
复制
发表时间:
2012
影响因子:
2.2
通讯作者:
Scheller
中科院分区:
文献类型:
--
作者:
Kovalev;Scheller
The mechanical behavior and microstructure evolution during deformation of novel austenitic Cr–Mn–Ni as‐cast steels with varied Ni content were investigated at various temperatures using static tensile tests, optical microscopy, and the magnetic scale for the detection of ferromagnetic phase fraction. To summarize all knowledge about the deformation‐induced processes, the STT and DTT diagrams were developed for Cr–Mn–Ni steels. The diagrams illustrate the different deformation mechanisms depending on temperature and tension load, and quantify the elongation of the deformation mechanisms. The deformation‐induced ε‐ and α' martensite formation and twinning – the TRIP and TWIP effects – occur in the Cr–Mn–Ni steels depending on the chemical composition and temperature. The differences of deformation‐induced processes depend on thermodynamics and are confirmed by thermodynamic calculations. The nucleation threshold of γ → α′ transformation was determined for the investigated Cr–Mn–Ni steels.
DOI:
10.4028/www.scientific.net/ssp.172-174.172
发表时间:
2011
期刊:
Solid State Phenomena
影响因子:
--
作者:
Martin;Martin;Krüger
通讯作者:
Krüger
影响因子:
2.5
作者:
L. Krüger;S. Wolf;Stefan Martin;Markus Rüssel;U. Martin;A. Jahn;A. Weiss;Piotr R. Scheller
通讯作者:
Piotr R. Scheller
影响因子:
2.2
作者:
A. Kovalev;A. Jahn;A. Weiss;P. Scheller
通讯作者:
P. Scheller