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本文扼要地叙述了55SiMnVB钢的拉伸试验方法及所获得的性能数据,并介绍了用Camscan—2型扫描电镜摄制的金相和断口照片,分析讨论了该钢种的显微组织与拉伸性能之间的内在联系和断裂机制。
This article briefly describes the tensile test method of 55SiMnVB steel and the obtained performance data, and introduces the metallographic and fracture pictures taken with the Camscan-2 scanning electron microscope. The microstructure and tensile of the steel are analyzed and discussed Internal relations between the performance and fracture mechanism.