电焊机2018，Vol.48Issue(4)：42-46,5.DOI:10.7512/j.issn.1001-2303.2018.04.09
HP-NbM耐热钢异种焊接头组织及性能
Structures and properties of dissimilar welded joints of HP-NbM heat resistant steel
刘国芹 1郭景锋 1古朝雄1
作者信息
- 1. 青岛新力通工业有限责任公司,山东青岛266700
- 折叠
摘要
Abstract
In this paper,the microstructure,mechanical properties at room temperature and high temperature,and the fracture morphology of dissimilar welded joints between HP-NbM heat-resistant steel and 15CrMo steel,0Cr18Ni10Ti stainless steel were analyzed by the optical microscope,electronic universal testing machine,and scanning electron microscope.The results show that the microstructure change occurs in the heat-affected zone of 15CrMo,and the ferrite-pearlite structure transforms into the ferrite-martensite structure.Much α-phase precipitates in the heat-affected zone of 0Crl8Nil0Ti stainless steel.The yield strength of these two welded joints is higher than the base metal,but the percentage elongation after fracture is lower.Under high temperature,higher tensile strength of these two welded joints was obtained with the increase of strain rate.关键词
HP-NbM/异种焊接/接头/耐热钢Key words
HP-NbM/dissimilar welding/welded joints/heat resistant steel分类
矿业与冶金引用本文复制引用
刘国芹,郭景锋,古朝雄..HP-NbM耐热钢异种焊接头组织及性能[J].电焊机,2018,48(4):42-46,5.
