典型文献
Atomic-scale characterization of multiple precipitating species in a precipitation-hardened martensitic stainless steel
文献摘要：
Multiple precipitating species in a 2.2 GPa grade precipitation-hardened martensitic stainless steel with balanced ductility were characterized at atomic scale by atom probe tomography.The results indicated that the clustering of solute atoms was promoted with progressive aging treatments.(Cr,Mo)-rich carbide(M2C)precipitated at the linear dislocations in the as-aged steels.Obvious segregation of Cr,Mo,and C at phase boundaries favored the precipitation of carbide and caused the formation of Cr-lean domains.Spinodal decomposition of martensitic matrix during aging led to the substantial precipi-tation of fine Cr-rich(α'Cr)phase.Compared with the first aging treated samples,a synergistic enhancement of both strength and ductility of the secondary aging treated(SAT)samples was primarily ascribed to the enhanced precipitation of Cr-rich phase.Additionally,Ni-rich filmy reversed austenite precipitated at the lath boundary,which was beneficial to the ductility of SAT samples.
文献关键词：
中图分类号：
作者姓名：
Zhen-bao Liu;Zhe Yang;Jian-xiong Liang;Zhi-yong Yang;Guang-min Sheng
作者机构：
Division of Special Steels,Central Iron and Steel Research Institute(CISRI),Beijing 100081,China;School of Material Science and Engineering,Chongqing University,Chongqing 400044,China
文献出处：
引用格式：
[1]Zhen-bao Liu;Zhe Yang;Jian-xiong Liang;Zhi-yong Yang;Guang-min Sheng-.Atomic-scale characterization of multiple precipitating species in a precipitation-hardened martensitic stainless steel)[J].钢铁研究学报（英文版）,2022(02):207-214
A类：
Spinodal,filmy
B类：
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AB值：
0.557647
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