Microstructures, Mechanical Properties and Strengthening Mechanisms of cast Cu-Al Alloys Processed by Cryorolling

被引：0
|
作者：
Dasharath, S. M. [1 ]
Mula, Suhrit [1 ]
机构：
[1] Indian Inst Technol Roorkee, Dept Met & Mat Engn, Roorkee 247667, Uttar Pradesh, India
来源：
RECENT TRENDS IN MATERIALS AND DEVICES, ICRTMD 2015 | 2017年 / 178卷
关键词：
STACKING-FAULT ENERGY;
D O I：
10.1007/978-3-319-29096-6_62
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In the present work, the cast structures of Cu-4.5wt% Al alloy was homogenized by annealing at 800 C for 4 h. The samples were kept under LN2 before and during the rolling process in each pass to maintain a constant LN2 temperature. Mechanical properties were evaluated by the tensile test. Microstructural analysis was carried by optical microscopy and TEM analysis. The maximum yield strength (YS) of the 75 % cryorolled samples of Cu-4.5wt% Al alloy was found to be 786 MPa with a ductility of 4.8 %. This is due to the formation of ultrafine grains and nano -twins possibly play the pivotal role for the improved YS and ductility.
引用
收藏
页码：479 / 482
页数：4
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