Three dimensional atom probe and first-principles studies on spinodal decomposition of Cr in a Co-alloyed maraging stainless steel

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• 作者：Jialong Tian^a ; ^c ; Wei Wang^a ; ^{wangw@imr.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Lichang Yin^a ; ^b ; ^{lcyin@imr.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Wei Yan^a ; Yiyin Shan^a ; Ke Yang^a
• 关键词：Maraging stainless steels ; Spinodal decomposition ; First-principles calculation ; Three- dimensional atom probe
• 刊名：Scripta Materialia
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：121
• 期：Complete
• 页码：37-41
• 全文大小：1063 K

文摘

The effect of Co addition on spinodal decomposition of Cr in a new maraging stainless steel was investigated by three dimensional atom probe (3DAP). The concentration profile of Cr and analysis by maximum likelihood method indicated an increase of spinodal decomposition amplitude of Cr in the Co-alloyed maraging stainless steel. The first-principles calculations showed that the increased Fe-Fe ferromagnetic interaction caused by Co addition might facilitate the formation of Cr-rich clusters in bcc Fe.