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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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汽轮机低压叶片用20cr13马氏体钢异种钢接头的组织性能分析
, PP. 75-78
Keywords: 汽轮机叶片,20cr13马氏体耐热钢,焊接接头,热影响区粗晶区,ni基焊材
Abstract:
对ni基焊材的20cr13马氏体耐热钢焊态异种钢接头的组织与力学性能进行了试验研究，分析了此类焊接接头的薄弱部位，提出了工艺改进措施。试验结果表明，焊态异种钢接头的抗拉强度可以达到母材的90%以上，热影响区粗晶区是此类接头的薄弱部位；采用多层多道的小规范焊接工艺并补加焊接回火焊道，可以使20cr13钢热影响区粗晶区的性能得到改善。
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