原位脉冲电流对GH4169合金拉伸变形及断裂行为的影响

来源 :第十九届全国疲劳与断裂学术会议 | 被引量 : 0次 | 上传用户：lostbridge

【摘要】

：

研究了原位脉冲电流对GH4169 合金高温拉伸变形及断裂行为的影响。结果表明相同温度下拉伸变形，拉伸变形过程中施加脉冲电流，与常规高温拉伸相比，合金强度降低、延伸率增加。脉冲电流显著增强合金塑性变形能力。常规高温拉伸，合金断口呈典型的冰糖状花样特征形貌。施加脉冲电流拉伸变形，合金断口呈类似韧窝特征形貌。脉冲电流改变合金的断裂方式。

【作者】

：

安金岚王磊刘杨宋秀

【机构】

：

东北大学材料各向异性与织构教育部重点实验室

【出处】

：

第十九届全国疲劳与断裂学术会议

【发表日期】

：

2018年10期

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原位脉冲电流对GH4169合金拉伸变形及断裂行为的影响

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