低碳铁素体不锈钢高频直缝电阻焊管退火工艺优化
邵毅,李彦默,刘晨曦(),严泽生,刘永长
Annealing Process Optimization of High Frequency Longitudinal Resistance Welded Low-CarbonFerritic Stainless Steel Pipe
SHAO Yi ,LI Yanmo ,LIU Chenxi (),YAN Zesheng ,LIU Yongchang

图11. 不同退火温度下接头各区域的显微硬度

Fig.11. Microhardness distribution from weld zone to base metal after annealing at different temperatures for 3 min