大块非晶合金过冷液相区的超塑性流变行为

材料导报, 2004, 18(7): 22-25.

大块非晶合金过冷液相区的超塑性流变行为

沈军 ^1, , 孙剑飞 ^2, , 王刚 ^3, , 黄永江 ^4, , 周彼德 ^5,

1.哈尔滨工业大学材料科学与工程学院,哈尔滨,150001

2.哈尔滨工业大学材料科学与工程学院,哈尔滨,150001

3.哈尔滨工业大学材料科学与工程学院,哈尔滨,150001

4.哈尔滨工业大学材料科学与工程学院,哈尔滨,150001

5.哈尔滨工业大学材料科学与工程学院,哈尔滨,150001

基金项目: 哈尔滨工业大学校科研和教改项目国家重点实验室基金

关键词：大块非晶合金 , 过冷液相区 , 超塑性流变行为 , 力学本构模型

Superplastic Flow Behavior of Bulk Metallic Glasses in Supercooled Liquid Region

大块非晶合金在过冷液相区内较低应变速率变形条件下呈现出牛顿型流变状态,并获得最佳塑性.其流变机制为一种与聚合物体系及无机玻璃相似的动力学行为.由于在超塑性流变过程中非晶相伴随有晶化现象的发生,因此,大块非晶合金的粘滞流变是一种非晶相-晶化相复相结构的变形行为.

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材料期刊网

大块非晶合金过冷液相区的超塑性流变行为

Superplastic Flow Behavior of Bulk Metallic Glasses in Supercooled Liquid Region

参考文献