冷拔过程中GH738合金丝材焊口组织演变规律研究  

Investigation on the Evolution of the Weld Fracture of GH738 Alloy during Cold Drawing Deformation

作　　者：吴会云[1] 吴兵[1] 章清泉[1] 李明扬[1] 魏然[1] 曹宇[1] 

机构地区：[1]北京北冶功能材料有限公司,北京100192

出　　处：《金属材料研究》2016年第1期18-21,共4页Research on Metallic Materials

摘　　要：研究了GH738镍基高温合金丝材焊口组织在生产过程中的演变规律。通过对比不同冷拔道次GH738焊口与GH738合金基体的晶粒组织、夹杂及力学性能，结果表明，GH738合金经币5．0mm焊接冷拔至Φ2．0mm后焊口组织和性能与基体无差异。The evolution of the weld fracture of GH738 alloy during cold drawing deformation was investigated by comparing the microstructure and mechanical properties under different deformed reduction. The results indicated that the differences of microstructure and mechanical properties of the GH738 alloy wires with deformed wires from Φ5.0 mm to Φ2.0 mm were not obviously.

关 键 词：GH738合金 冷拔 焊口 组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程]