四种800MPa级低合金高强钢焊接过热区韧性及氢裂敏感性的研究  

TOUGHNESS AND HYDROGEN CRACKING SENSITIVITY IN OVERHEAT ZONES OF 4 KINDS OF 800MPa HSLA STEELS

作　　者：蔡宏彬[1] 周昭伟[1] 张国九 李彦文[1] 董丽萍 

机构地区：[1]哈尔滨焊接研究所

出　　处：《焊接》1991年第9期2-6,共5页Welding & Joining

摘　　要：采用焊接热模拟技术、示波冲击韧性试验及充氫插销试验法研究了T—1、Wel-ten80C、StE690和HQ80C钢的焊接过热区韧性及氫裂敏感性,试验得出了每种钢能获得既有良好韧性又有较低氢裂敏感性的过热区组织(M+B_Ⅲ)的合适t_(8/5)值。The methods of thermal simulation technique, oscillograph impact toughness test and implant test with hydrosen charging are applied to investigate the toughnesses and hydrogen cracking sensitivies in overheat zones of T-l,Wcl-ten80C, StE690 and HQ80C steels. The results obtained show that each kind of steel has its own appropriate t_(8/5) value which makes the overheat zone better toughness and lower sensitivity to hydrogen cracking.

关 键 词：高强钢 焊接 过热区 韧性 氢裂 

分 类 号：TG457.11[金属学及工艺—焊接]