李立英,王成,韩彬,蒲江涛

• 1:中国石油大学(华东)机电工程学院
• 2:新疆石油工程建设有限责任公司

摘要(Abstract)：

对L415/316L复合管进行了充氩和免充氩焊接,采用光学显微镜、电子探针对焊缝组织及主要合金元素分布进行了分析,并采用硬度计测定了接头硬度分布。结果表明,是否采用氩气保护对L415/316L复合管焊接接头组织、化学成分及硬度没有影响。不锈钢层组织为奥氏体和少量铁素体,过渡层为板条状马氏体和类固溶体奥氏体。过渡层焊缝硬度明显高于碳钢层和不锈钢层。背部采用保护剂焊接可以代替传统的充氩焊接,以提高焊接效率。

关键词(KeyWords)： L415/316L双金属复合管;免充氩焊接;显微组织;硬度

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金(ZR2013EEQ027);; 中央高校基本科研业务费专项资金资助(14CX02066A)

作者(Author): 李立英,王成,韩彬,蒲江涛

DOI: 10.13289/j.issn.1009-6264.2014.01.024

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