铸造技术2013，Vol.34Issue(3)：364-365,2.
TH-950HN焊条堆焊组织与性能研究
Microstructure and Properties of Surfacing Weld with TH-950HN Welding Rod
摘要
Abstract
Taing Q345B as base material,the microstructure and properties of surfacing welds were studied with TH-950HN welding rods.The results show that there are many primary crystal phase and eutectic structure of (Cr,Fe)7C3 in the surfacing alloy.The carbides on the surface of the surfacing alloy appear lump with the size about 20 μm,while the morphology of the carbides changes into bone-like and strip with the increase of the depth in the alloy.These reinforcing phases of carbides distribute in the alloy matrix,can play the effect of dispersion strengthening,make the hardness of the surfacing alloy higher.The hardenss of the surfacing alloy is uniform within 56～65 HRC.关键词
TH-950HN/焊接/显微组织/力学性能Key words
TH-950HN/ welding/ microstructure/ mechanical properties分类
矿业与冶金引用本文复制引用
孙有平,涂耀耀,李旺珍,白兆军..TH-950HN焊条堆焊组织与性能研究[J].铸造技术,2013,34(3):364-365,2.基金项目
广西工学院博士基金项目(院科博1003) （院科博1003）
广西工学院自然科学基金项目(1166103) （1166103）
