Evolution of microstructures and mechanical properties with tempering temperature of a pearlitic quenched and tempered steel
Evolution of microstructures and mechanical properties with tempering temperature of a pearlitic quenched and tempered steel
复制标题
珠光体调质钢显微组织和力学性能随回火温度的演变
DOI：
10.1007/s42243-021-00677-0
复制
发表时间：
2021-10
影响因子：
2.5
通讯作者：
Xingwang Cheng
中科院分区：
文献类型：
--
作者：
Dezhen Yang;Zhiping Xiong;Chao Zhang;Guanzheng Feng;Zhifang Cheng;Xingwang Cheng
用片状珠光体的原始组织进行快速奥氏体化，然后再进行淬火和回火，而不是常规的淬火和回火，从而形成了不均匀的组织。它由不同形态的板条马氏体和残余奥氏体(RA)组成。系统研究了回火温度对组织演变和拉伸性能的影响。随着回火温度从150℃升高到250℃，过渡碳化物逐渐粗化，数量增加，马氏体板条中的位错密度逐渐降低，RA含量从10.9%下降到2.2%。析出和位错强化可以保证高的强度，而RA可以保证良好的塑性，导致降低回火温度时强度和塑性同时提高。具体地说，在150℃回火后获得了最佳的拉伸性能组合(极限拉伸强度 为 2133 ± 41 Mpa，总伸长率 为 11.1% ± 1.3%)。
Instead of conventional quenching and tempering, fast austenitization from an initial microstructure of lamellar pearlite followed by quenching and tempering was carried out, leading to the formation of inhomogeneous microstructure. It comprised different morphologies of lath martensite and retained austenite (RA). The effect of tempering temperature on microstructure evolution and tensile properties was systematically investigated. With increasing tempering temperature from 150 to 250 °C, transition carbides gradually coarsened and their amount increased, the dislocation density in martensitic laths gradually decreased, and RA fraction decreased from 10.9% to 2.2%. The precipitation and dislocation strengthening can ensure a high strength, while RA can ensure a good ductility, leading to a simultaneous increase in the strength and ductility when decreasing tempering temperature. Specifically, the best combination of tensile properties (ultimate tensile strength of 2133 ± 41 MPa and total elongation of 11.1% ± 1.3%) was achieved after tempering at 150 °C.
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DOI：
10.1007/bf02814837
发表时间：
1985-01-01
期刊：
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
影响因子：
--
作者：
TOMITA, Y;OKABAYASHI, K
通讯作者：
OKABAYASHI, K
DOI：
10.5860/choice.43-6550
发表时间：
2005-08
期刊：
--
影响因子：
--
作者：
G. Krauss
通讯作者：
G. Krauss
回火对3Mn-Si-Ni马氏体钢组织和力学性能的影响
DOI：
10.1016/j.msea.2017.11.037
发表时间：
2018-01
影响因子：
6.4
作者：
Zhao Yan jun;Ren Xue ping;Hu Zhi liu;Xiong Zhi ping;Zeng Jian min;Hou Bao yu
通讯作者：
Hou Bao yu
DOI：
10.1016/s1006-706x(17)30123-1
发表时间：
2017-08
影响因子：
2.5
作者：
Xiaoli Zhao;Yongjia Zhang;C. Shao;W. Hui;Han. Dong
通讯作者：
Xiaoli Zhao;Yongjia Zhang;C. Shao;W. Hui;Han. Dong
影响因子：
3.5
作者：
Primig, S.;Leitner, H.
通讯作者：
Leitner, H.