异种金属焊接接头C4镍基合金侧熔合区微观组织Microstructure of fusion zone by C4 Ni-base alloy in dissimilar metal weld joint
杨丽颖,杨立清,庞艳荣,王芳,董小平
摘要(Abstract):
采用80S-G低合金钢焊丝焊接C4镍基合金/X60低合金钢异种金属。利用扫描电镜观察C4镍基合金母材/80S-G焊缝之间熔合区微观组织,能谱分析该区元素分布。结果表明,C4镍基合金母材稀释进入80S-G低合金钢焊缝内,致使Ni、Cr、Mo元素质量分数从部分熔化区到过渡区缓慢降低,Fe元素质量分数增加。微观组织从单相奥氏体组织逐渐转化为奥氏体与铁素体组成的混合组织,在此区域中弥散分布少量析出相粒子。
关键词(KeyWords): 异种金属焊接;微观组织;元素分布;熔合区
基金项目(Foundation): 河北省自然科学基金(E2010000301);; 河北大学自然科学研究计划项目(2009-153);; 河北大学大学生科技创新项目(2011073);; 河北省高等学校科学研究计划项目(Z2012168);; 保定市科学计划研究与发展指导计划项目(12ZG018)
作者(Author): 杨丽颖,杨立清,庞艳荣,王芳,董小平
DOI: 10.13289/j.issn.1009-6264.2013.02.015
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