It puts forward a conception of weld inclusions crack index so as to better control quality of weld seam.
为了更好地控制焊缝质量，提出了焊缝夹杂物裂纹指数的概念。
The results showed that nonmetallic inclusions in weld seam served as crack initiation site under external bend load, and large amount of m a structure resulted in cleavage fracture of weld seam.
结果表明，焊缝金属中存在的非金属夹杂物，在低应力作用下形成微裂纹成为裂源，加之焊缝组织中存在大量的MA结构群，从而发生焊缝金属在室温下的解理断裂。
Analyses the cause for the crack resulting from the non-fusion in the longitudinal weld seam of a power plant boiler cylinder, and suggests corrective actions to eliminate the defect.
针对一台电站锅炉锅筒纵焊缝未融合引起的裂纹进行分析，并提出缺陷修复的办法。
Fatigue beaked on weld seam more than other places. Fatigue crack initiation occurred inside materials and fatigue fracture was analyzed by SEM.
疲劳试验发现，疲劳试样断裂位置多发生在焊缝处，并对疲劳断口进行了SEM分析。
Fatigue beaked on weld seam more than other places. Fatigue crack initiation occurred inside materials and fatigue fracture was analyzed by SEM.
疲劳试验发现，疲劳试样断裂位置多发生在焊缝处，并对疲劳断口进行了SEM分析。
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