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42CrMo激光焊焊缝组织
Alternative TitleWeld microstructure of steel 42CrMo by laser welding
庞铭; 谭建松; 王建平; 吴波; 解志民; 胡定云; 郑彩云
Source Publication焊接技术
2010-02-28
Volume39Issue:02Pages:15-16+20+71
Abstract42CrMo合金钢C含量高、合金元素含量多、淬硬倾向大,焊接性能差。激光焊接具有功率密度高、焊接变形小等优点,适合焊接传统工艺难焊的同种或异种金属。通过额定功率为3kW的Nd∶YAG固体激光器焊接42CrMo,采用光学显微镜(OM)、扫描电镜(SEM)、X衍射、硬度仪分析了焊缝区域组织、成分和硬度变化。研究结果表明:焊缝区域组织为马氏体,热影响完全淬火区的组织为马氏体+贝氏体组织,热影响不完全淬火区的组织为贝氏体。从焊缝正面到焊缝背面的硬度分布表明:由于焊缝正面有保护气体的作用提高了焊缝正面熔池的冷却速度,使焊缝背面的硬度低于焊缝正面的硬度。
Keyword激光焊接 42crmo 焊缝硬度 组织
URL查看原文
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44014
Collection先进制造工艺力学重点实验室
Corresponding Author庞铭
Recommended Citation
GB/T 7714
庞铭,谭建松,王建平,等. 42CrMo激光焊焊缝组织[J]. 焊接技术,2010,39(02):15-16+20+71
APA 庞铭.,谭建松.,王建平.,吴波.,解志民.,...&郑彩云.(2010).42CrMo激光焊焊缝组织.焊接技术,39(02),15-16+20+71.
MLA 庞铭,et al."42CrMo激光焊焊缝组织".焊接技术 39.02(2010):15-16+20+71.
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