低碳铁素体不锈钢高频直缝电阻焊管退火工艺优化
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Annealing Process Optimization of High Frequency Longitudinal Resistance Welded Low-CarbonFerritic Stainless Steel Pipe
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图4. 焊接接头各区域微观组织的OM像 |
Fig.4. OM images of microstructure of welded joint(a) weld zone (b) HAZ 1 (c) HAZ 2 (d) base metal |
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