2N、μ相、χ相、Laves相、M23C6、M6C和M3C；(2)654SMO鋼的主要有害析出相為σ相、Cr2N,其析出相的析出峰值溫度為900℃；(3) C-276合金的主要析出相是M6C與μ相,在本文時(shí)效條件下,并未出現(xiàn)σ相析出。"/>

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高M(jìn)o超級(jí)奧氏體不銹鋼和Ni-Cr-Mo鎳基合金析出相研究及對(duì)比
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鋼鐵研究總院,寶鋼特鋼有限公司,清華大學(xué),鋼鐵研究總院,寶鋼特鋼有限公司,鋼鐵研究總院,鋼鐵研究總院

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Research and Comparasion on Precipitated Phases of High Mo Super Austenitic Stainless Steel and Ni-Cr-Mo Nickel-base Alloy
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Central Iron and Steel Research Institute,,Tsinghua University,Central Iron and Steel Research Institute,,Central Iron and Steel Research Institute,Central Iron and Steel Research Institute

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    摘要:

    選擇典型牌號(hào)654SMO和C-276,對(duì)高M(jìn)o超級(jí)奧氏體不銹鋼和Ni-Cr-Mo鎳基合金的析出相進(jìn)行研究,對(duì)不同時(shí)效條件下654SMO和C-276進(jìn)行組織觀察、EDS及相分析,結(jié)果表明,雖然654SMO和C-276均含有較高的Cr、Mo含量,但由于其合金體系不同,其析出相種類形態(tài)各異,主要研究結(jié)果有：(1)654SMO有8種第二相析出,分別為：σ相、Cr2N、μ相、χ相、Laves相、M23C6、M6C和M3C；(2)654SMO鋼的主要有害析出相為σ相、Cr2N,其析出相的析出峰值溫度為900℃；(3) C-276合金的主要析出相是M6C與μ相,在本文時(shí)效條件下,并未出現(xiàn)σ相析出。

    Abstract:

    Typical grade 654SMo and C-276 were selected to investigate the precipitated phases of high Mo super austenictic stainless steel and Ni-Cr-Mo Nickel-base alloy. Microstructure observation, EDS and phase analysis was taken for 654SMo and C-276 samples at different aging conditions.The results showed that the types and morphology of the precipitated phase in 654SMo and C-276 were different due to their different alloy system athough they both contained high content of Cr, Mo element. About eight kinds of second phases were precipitated in 654SMo, which included σ phase,Cr2N,μ phase,χphase,Laves phase,M23C6,M6C and M3C. σ phase and Cr2N were the main harmful phases of 654SMo and the peak precipitating temperature is 900℃. For C-276 alloy, M6C and μ phase were the main precipitated phases and σ phase wasn’t found under the aging condition of this aticle.

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宋志剛,徐長征,蒲恩祥,苗亞洲,馬天軍,豐涵,鄭文杰.高M(jìn)o超級(jí)奧氏體不銹鋼和Ni-Cr-Mo鎳基合金析出相研究及對(duì)比[J].稀有金屬材料與工程,2018,47(3):895~903.[Song Zhigang, Xu Changzheng, Pu Enxiang, Miao Yanzhou, Ma Tianjun, Feng Han, Zheng Wenjie. Research and Comparasion on Precipitated Phases of High Mo Super Austenitic Stainless Steel and Ni-Cr-Mo Nickel-base Alloy[J]. Rare Metal Materials and Engineering,2018,47(3):895~903.]
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  • 收稿日期:2017-09-10
  • 最后修改日期:2017-12-14
  • 錄用日期:2018-01-03
  • 在線發(fā)布日期: 2018-04-11
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