Thermal stress-induced fracture of coating layer of galvannealed steel
Thermal stress-induced fracture of coating layer of galvannealed steel
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DOI：
10.1163/156855405774327948
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发表时间：
2005-01
影响因子：
2.6
通讯作者：
Shojiro Ochiai;S. Iwamoto;T. Tomida;H. Okuda;Mototsugu Tanaka;M. Hojo
中科院分区：
文献类型：
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作者：
Shojiro Ochiai;S. Iwamoto;T. Tomida;H. Okuda;Mototsugu Tanaka;M. Hojo
以IF钢（Interstitial free steel）和SPCC钢（Steel plate cold commercial，Japanese Industrial Standard）为基体，研究了热镀锌合金化钢Fe-Zn金属间化合物涂层的热应力诱发多处断裂。对多重断裂涂层的测量长度分析表明，涂层的断裂强度为260-280 MPa，涂层的残余应力在720-740 MPa左右通过多重断裂降低到130-140 MPa左右。涂层厚度和基体的应力-应变曲线对涂层的多重断裂行为的影响也被阐明。
The thermal stress-induced multiple fracture of the Fe-Zn intermetallic compound coating layer of galvannealed steel was investigated for samples with IF (interstitial free steel) and SPCC (steel plate cold commercial, Japanese Industrial Standard) as substrates. The analysis of the measured length of the multiply fractured coating layer showed that the fracture strength of the coating layer was 260–280 MPa and the residual stress around 720–740 MPa of the coating layer was reduced to around 130–140 MPa through the multiple fracture. The influences of the coating layer thickness and the stress–strain curve of the substrate on the multiple fracture behavior of the coating layer were also clarified.