摘要
对9％Ni钢进行了实际焊接接头和模拟HAZ(热影响区)韧性的研究。经恒电位腐蚀法显示,呈弥散分布的回转奥代体A′能细化晶粒、提高HAZ的低温韧性。施焊中采用多道、多层、小线能量,可使焊接接头的HAZ形成回转奥氏体A′。
The toughness of 9％Ni steel welded joint and simulated HAZ have been studied. The experimental results from constant potential corrosion testing have shown that as the reversal austenite A' appear in the dispersed distribution, the grain willbe fined and low temperature toughness be increased. The reversal austenite A' can be formed in HAZ when the welding procedure with more passes to form muhiple-layers as low heat input is adopted.
出处
《焊接》
北大核心
1990年第2期9-11,20,共4页
Welding & Joining
