Role of Co in formation of Ni-Ti clusters in maraging stainless steel
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2018年第9期
论文作者：Jialong Tian M.Babar Shahzad Wei Wang Lichang Yin Zhouhua Jiang Ke Yang
文章页码：1671 - 1675
摘 要：The effect of Co addition on the formation of Ni-Ti clusters in maraging stainless steel was studied by three dimensional atom probe（3 DAP） and first-principles calculation. The cluster analysis based on the maximum separation approach showed an increase in size but a decrease in density of Ni-Ti clusters with increasing the Co content. The first-principles calculation indicated weaker Co-Ni（Co-Ti） interactions than Co-Ti（Fe-Ti） interactions, which should be the essential reason for the change of distribution characteristics of Ni-Ti clusters in bcc Fe caused by Co addition.
Jialong Tian1,2，M.Babar Shahzad2，Wei Wang2，Lichang Yin2,3，Zhouhua Jiang4，Ke Yang2
1. School of Materials Science and Engineering, Northeastern University2. Institute of Metal Research, Chinese Academy of Sciences3. Shenyang National Laboratory for Materials Science4. School of Metallurgy, Northeastern University
摘 要：The effect of Co addition on the formation of Ni-Ti clusters in maraging stainless steel was studied by three dimensional atom probe（3 DAP） and first-principles calculation. The cluster analysis based on the maximum separation approach showed an increase in size but a decrease in density of Ni-Ti clusters with increasing the Co content. The first-principles calculation indicated weaker Co-Ni（Co-Ti） interactions than Co-Ti（Fe-Ti） interactions, which should be the essential reason for the change of distribution characteristics of Ni-Ti clusters in bcc Fe caused by Co addition.
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