焊管2024，Vol.47Issue(6)：34-38,5.DOI:10.19291/j.cnki.1001-3938.2024.06.006
铝镁合金对LNG储罐用9%Ni钢镍基焊条熔敷金属力学性能的影响
Effect of Al-Mg Alloy on Mechanical Properties of 9%Ni Steel Nickel-based Welding Rod Deposited Metal for LNG Storage Tank
方子春 1郭嘉乐1
作者信息
- 1. 新乡学院 3D打印学院,河南 新乡 453003
- 折叠
摘要
Abstract
In order to explore the effect of different contents of Al-Mg alloy in ENiCrMo-6 welding rod on the mechanical properties of deposited metal,different contents of Al-Mg alloy were added to the original formula,and X-ray detection,microstructure observation,chemical composition test,oxygen content test and mechanical properties test were carried out on the welded test plate.The results show that all the deposited metals with different contents of Al-Mg alloy welding rod are qualified by X-ray detection.There is little difference in microstructure types among all the deposited metals.The relative contents of Si,Mn and Cr in deposited metals increase with the increase of the content of Al-Mg alloys,but they all meet the requirements of relevant standards.The intermediate content of Al-Mg alloy deposited metal has obvious inclusions and more oxygen content,and has better mechanical properties,especially higher elongation and section shrinkage.The results indicate that the appropriate amount of Al-Mg alloy can promote the formation of inclusions in the deposited metal.In a certain range,Al-Mg alloy has little effect on the low temperature impact toughness of the mechanical properties of deposited metals,but can significantly improve the plasticity.关键词
铝镁合金/熔敷金属/夹杂物/力学性能Key words
Al-Mg alloy/deposited metal/inclusion/mechanical property分类
矿业与冶金引用本文复制引用
方子春,郭嘉乐..铝镁合金对LNG储罐用9%Ni钢镍基焊条熔敷金属力学性能的影响[J].焊管,2024,47(6):34-38,5.
