电焊机2018，Vol.48Issue(4)：110-114,5.DOI:10.7512/j.issn.1001-2303.2018.04.25
湿度对高压环境下GMAW接头力学性能的影响规律
Influence of humidity on mechanical properties of GMAW joints in the hyperbaric environment
摘要
Abstract
The influence of environmental humidity on the mechanical properties of GMAW joint was studied in a hyperbaric test chamber which was used to simulate underwater hyperbaric welding.The low carbon steel Q235C was used as base metal,and V-groove butt welding tests with GMAW were carried out under low,medium and high environmental humidities with other process parameters unchanged.Then,tensile,bending and charpy impact tests and analyses were performed to the joints.The results showed that the change of environmental humidity had little effect on bending performance of the joint,but tensile strength of the joint was increased and impact toughness of the joint was reduced with the increase of the environmental humidity.关键词
水下高压干法焊接/湿度/力学性能/冲击韧性Key words
underwater hyperbaric welding/humidity/mechanical property/impact toughness分类
矿业与冶金引用本文复制引用
冯静,薛龙,黄继强,黄军芬,刘宏,谭谊诚..湿度对高压环境下GMAW接头力学性能的影响规律[J].电焊机,2018,48(4):110-114,5.基金项目
国家自然科学基金资助项目(51275051) （51275051）
北京市教育委员会2015年度创新能力提升计划项目(TJSHG201510017023) （TJSHG201510017023）
