Microstructure Evolution and Dynamic Softening Mechanism of 00Cr22Ni5Mo3N DSS During Hot Compression

钢铁研究学报(英文版), 2011, 18(7): 64-68.

Microstructure Evolution and Dynamic Softening Mechanism of 00Cr22Ni5Mo3N DSS During Hot Compression

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1.Central Iron and Steel Research Institute, Beijing 100081, China

2.Stainless Steel Council, China Special Steel Enterprises Association, Beijing 100007, China

3.Stainless Steel Council, China Special Steel Enterprises Association, Beijing 100007, China

4.Taiyuan Iron and Steel （Group） Company Ltd, Taiyuan 030003, Shanxi, China

5.Taiyuan Iron and Steel （Group） Company Ltd, Taiyuan 030003, Shanxi, China

6.Central Iron and Steel Research Institute, Beijing 100081, China

关键词：动态软化 , 压缩机制 , DSS , 组织演变 , 透射电子显微镜 , 炎热 , 平面应变 , 结构观察

Microstructure Evolution and Dynamic Softening Mechanism of 00Cr22Ni5Mo3N DSS During Hot Compression

Keywords： 00Cr22NiSMo3N , plane strain , dynamic softening mechanism ,

Through plane strain compression, hot ductility of 00Cr22Ni5Mo3N DSS is studied under plane strain con dition, and the dynamic softening mechanism is investigated through microstructure observation under TEM. The results show that the deformation temperature can markedly influence the peak stress of 00Cr22NiSMo3N specimens. And being different from DSS softening mechanism generally reported, ferrite can be softened through dynamic re eovery and recrystallization, hut austenite can he softened only through dynamic recovery during hot deformation. The unfavourable effect of N on softening capacity of austenite is greater than that of Ni.

参考文献

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[3]	宋志刚,陈斌,郑文杰,舒先进,吴红,张淑琴.00Cr22Ni5Mo3N钢的热扭转性能[J].钢铁研究学报,2008(05):37-40.
[4]	Akdut N;Foct J.Deformation of(High)Nitrogen Alloyed Austenitic-Ferritic Duplex Stainless Steels[A].Abington Publishing,1994

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