压力容器2012，Vol.29Issue(6)：24-28,62,6.DOI:10.3969/j.issn.1001-4837.2012.06.005
2.25Cr -1Mo -0.25V钢的焊缝回火脆化研究
Temper Embrittlement of Welded Material on 2.25 Cr - 1 Mo - 0.25V Steel
摘要
Abstract
In practical manufacture, we found that welding rod of the same trademark but different batch has distinct different tendency of brittleness when they are experienced step cooling embrittling treatment process. The chemical composition,mechanical properties,ductile -brittle transition temperature and metallurgical microscope of 2.25Cr- 1 Mo -0.25 V steel have been investigated,and the results show that the reason of temper brittleness is that the content of Si and Mn are high and phosphorus and carbonization segregation on grain boundary.关键词
2.25Cr-1Mo-0.25V焊缝/回火脆性/显微组织Key words
2.25Cr -1 Mo -0.25V steel/temper brittleness/microstructure分类
机械制造引用本文复制引用
宋立平,孙荣禄..2.25Cr -1Mo -0.25V钢的焊缝回火脆化研究[J].压力容器,2012,29(6):24-28,62,6.
