Aging precipitation and recrystallization inhigh-nitrogen austenitic stainless steel

来源期刊：中国有色金属学报(英文版)2009年增刊第3期

论文作者：石锋 王立军 崔文芳 祁阳 刘春明

文章页码：569 - 572

Key words：high-nitrogen austenitic stainless steel; aging; precipitation; recrystallization

Abstract: The interaction between precipitation and recrystallization in cold deformed Fe-18Cr-12Mn-0.48N high-nitrogen austenitic stainless steel was investigated by means of hardness test, optical microscopy (OM) and transmission electron microscopy (TEM). The results show that the recrystallization of the steel begins at about 750℃. When aging at 750℃, the precipitation occurs prior to recrystallization. Large numbers of the second phases nucleate in dislocation, grain boundary and subgrain boundary. Precipitation of the second-phase particles hinders the formation of recrystallization nucleus.

基金信息：the National Basic Research Program of China
the National Natural Science Foundation of China