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首页> 外文会议>Materials Science Technology Conference and Exhibition >CLEAVAGE FRACTURE IN COLD ROLLED STEEL FASTENERS
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CLEAVAGE FRACTURE IN COLD ROLLED STEEL FASTENERS

机译：冷轧钢紧固件中的裂解骨折

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Acleavage fracture is produced, usually at low temperature, under a condition of high triaxial stress-that is, at the root of the notch-or at a high deformation rate, as for example, by impact loading. The macro-scopic features of fracture surfaces were examined under stereo-microscope, while micro-scopic features were examined at higher magnifications under SEM/EDS. The present investigation is a cleavage fracture, which is one of the brittle fractures occurred in cold rolled steel component, that were typically predominantly transgranular. During the fracture surface evaluation, the cleavage features were observed, which include river patterns, tongues; micro twins and location of cleavage-crack origins. The root cause of the fracture was the cleavage, typically by impact and presented with well defined cleavage facets.
机译：在高三轴应力的条件下，通常在低温下产生ACLeavage裂缝 - 即在凹口或高变形速率下，例如通过冲击载荷。在立体显微镜下检查破裂表面的宏观特征，而SEM / EDS下的较高放大率在更高的放大率下检查微观方向特征。本研究是一种裂解骨折，其是冷轧钢组分发生的脆性骨折之一，其通常主要是ransrangular。在裂缝表面评价期间，观察到裂解特征，包括河口，舌片;微双胞胎和切割裂缝起源的位置。骨折的根本原因是裂解，通常通过抗冲击并呈现出明确定义的切割小平面。

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