西华大学学报（自然科学版）2011，Vol.30Issue(1)：90-92,3.
13MnNiMo54/20MnMo异种金属埋弧焊接头性能研究
Study on the Properties of 13MnNiMo54/20MnMo Dissimilar Metal Joints Prepared by Submerged Arc Welding Process
谢芋江 1屈金山 1何芬 1张德远 1陈文静1
作者信息
- 1. 西华大学材料科学与工程学院,四川,成都,610039
- 折叠
摘要
Abstract
The welding of 13MnNiMo54/20MnMo dissimilar metal joints is performed by multilayer and muhipass submerged arc welding process. The specimens are cut and prepared from qualified weldments. The microstructure of the joint metal is observed,high-temperature tensile test is conducted and the metal mierohardness of the dissimilar welded joints is measured. The results show that the microstructures of the joint middle layer microstructure is mainly fine blocky ferrite while the microstructure of the joint surface layer metal is coarse pre-eutectoid ferrite and acicular ferrite. The coarse grain HAZ is the weak location of the welded joint. The hardness value of the joint surface layer metal is higher than that of joint middle layer metal. The maximum hardness value appears in the coarse grain HAZ adjacent to the side of the base metal 20MnMo.关键词
异种金属焊接接头/金属组织/高温拉伸/显微硬度Key words
dissimilar metal welded joint/ microstructure/ high-temperature tensile test/ microhardness分类
矿业与冶金引用本文复制引用
谢芋江,屈金山,何芬,张德远,陈文静..13MnNiMo54/20MnMo异种金属埋弧焊接头性能研究[J].西华大学学报（自然科学版）,2011,30(1):90-92,3.
