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通过对钢的渗碳层断口形貌观察和断裂分析，研究了渗碳层组织对断裂的影响，提出了渗碳层的断裂机制，以期控制渗碳层质量。
The effect of carburized layer structure on fracture was studied by observing and analyzing fracture surface morphology of carburized layer of steel. The fracture mechanism of carburized layer was proposed in order to control the quality of carburized layer.