CuMnNiCo钎料钎焊MGH956合金接头组织及力学性能研究
发布时间：2018-07-14 21:37
【摘要】：采用自制的CuMnNiCo钎料对氧化物弥散强化(ODS)合金MGH956进行钎焊实验,分析了钎焊过程中各种组织的形成过程,研究了不同的钎焊温度对接头组织和性能的影响。结果表明:在1000~1050℃保温20min工艺下钎焊MGH956合金,均可获得良好的钎焊成形效果,钎焊接头由钎缝中心区的Cu-Mn基固溶体和两侧扩散反应区的Fe-Mn基固溶体组成,并含有三种不同的化合物相。钎焊温度为1030℃和1050℃时,接头的室温拉伸断裂发生在钎缝中心处,断口主要呈沿晶脆性断裂特征。钎焊温度的提高使沿晶界分布的脆性(Mn,Ni)-Si相减少,有利于改善钎焊接头强度,钎焊接头的室温抗拉强度最高可达到母材强度的75%。
[Abstract]:The brazing experiment of oxide dispersion strengthening (ODS) alloy MGH956 was carried out by using the self-made CuMnNiCo filler metal. The formation process of various microstructure during the brazing process was analyzed, and the effect of different brazing temperature on the microstructure and properties of the joint was studied. The results show that the brazing effect of MGH956 alloy can be obtained by brazing MGH956 alloy at 1000 鈩，
本文编号：2123027
[Abstract]:The brazing experiment of oxide dispersion strengthening (ODS) alloy MGH956 was carried out by using the self-made CuMnNiCo filler metal. The formation process of various microstructure during the brazing process was analyzed, and the effect of different brazing temperature on the microstructure and properties of the joint was studied. The results show that the brazing effect of MGH956 alloy can be obtained by brazing MGH956 alloy at 1000 鈩，
本文编号：2123027
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