Fracture of drilling head pipe connection due to quenching of heat affected zone (HAZ)

Metalurgija

Kosec, B.¹  Bizjak, M.¹  Zorc, B.²  Nagode, A.¹ 

[1] University of Ljubljana, Faculty of Natural Sciences and Engineering, Ljubljana, Slovenia;Welding Institute Ltd,, Slovenia and University of Ljubljana, Faculty of Natural Sciences and Engineering, Ljubljana, Slovenia

关键词: welding;    heat affected zone (HAZ);    martensite;    fracture;   

DOI  :  

学科分类：金属与冶金

来源: Hrvatsko Metalursko Drustvo

【 摘 要 】

The drilling head pipe connection is made of quenched and tempered steel 34CrNiMo6. The steel characteristic is high hardenability. Due to unsuitable and untested welding technology the heat affected zone (HAZ) cooling rate after welding...

【 授权许可】

Unknown