Cu58MnCo钎焊1Cr11Ni2W2MoV马氏体不锈钢接头组织与性能
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TG454


Microstructure and Properties of 1Cr11Ni2W2MoV Martensitic Stainless Joints Brazed with Cu58MnCo Filler Metal
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    摘要:

    采用Cu58MnCo钎焊连接1Cr11Ni2W2MoV,研究了工作气氛、钎焊温度和保温时间对接头组织和性能的影响。结果表明:钎焊接头主要包括α'+[γ(Fe),γ(Mn)]相,α(Co)+δ相和[Cu,γ(Mn)]+α(Mn)相;钎焊温度升高或保温时间延长,α'+[γ(Fe),γ(Mn)]相和[Cu,γ(Mn)]+α(Mn)相增多,α(Co)+δ相含量减少,接头拉剪强度降低;工作气氛为70 Pa时所获接头性能优于真空度1×10-2下所得的接头性能。

    Abstract:

    1Cr11Ni2W2MoV martensitic stainless were joined using Cu58MnCo filler metal. Influence of brazing temperature, holding time and working atmosphere on microstructure and properties of joints were studied. It indicated that α'+[γ(Fe),γ(Mn)] phase, α(Co)+δ phase and[Cu,γ(Mn)]+α(Mn) phase were observed in the joints. When brazing temperature or holding time was over high or long, the counts of α'+[γ(Fe),γ(Mn)] phase and[Cu,γ(Mn)]+α(Mn) phase increased, α(Co)+δ phase decreased, and the mechanical properties decreased. The properties of brazing joint get in 70 Pa better than in 1×10-2 Pa.

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杨敏旋, 蔺晓超, 刘春凤, 张杰. Cu58MnCo钎焊1Cr11Ni2W2MoV马氏体不锈钢接头组织与性能[J].南京航空航天大学学报,2018,50(S2):43-47

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  • 收稿日期:2018-03-23
  • 最后修改日期:2018-05-30
  • 在线发布日期: 2018-10-18
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