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On Mechanical Properties of Dissimilar Friction Welded Steel Bars

机译：异种摩擦焊接钢筋的力学性能研究

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摘要

An experimental study of dissimilar friction welding was conducted using 15mm diameter solid bar in chrome molybdenum steel (SCM440) to carbon steel (S45C) not only to optimize the friction welding conditions, but also to investigate the fatigue performance. The main friction welding parameters were selected to endure good quality welds on the basis of visual examination, tensile tests, Vickers hardness surveys of the bond of area and HAZ, and microstructure investigations. In this study, the specimens were tested as welded. For fatigue strength, the notched specimens for the optimal conditions were rotary bending fatigue tested. The results were compared with S-N curves for the base metals.
机译：在铬钼钢（SCM440）与碳钢（S45C）中使用直径为15mm的实心棒进行了异种摩擦焊接的实验研究，不仅优化了摩擦焊接条件，还研究了疲劳性能。在目视检查，拉伸试验，区域和HAZ结合处的维氏硬度调查以及显微组织调查的基础上，选择了主要的摩擦焊接参数以承受高质量的焊缝。在这项研究中，样品被测试为焊接。对于疲劳强度，对最佳条件下的缺口试样进行了旋转弯曲疲劳测试。将结果与贱金属的S-N曲线进行比较。

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