1. In this paper, the fracture of grey cast iron weld has been observed by SEM, and the mechanisms of the cracking initation and progression have been discussed.
通过灰口铸铁同质电弧冷焊焊缝断口宏观与显微分析，对灰口铸铁焊缝裂纹的形成及扩展机理进行了探讨。
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2. In this paper, the fracture of grey cast iron weld has been observed by SEM, and the mechanisms of the cracking initation and progression have been discussed.
