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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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[011]多滑移取向铜单晶体的循环形变行为──Ⅰ.循环应力-应变响应
, PP. 545-551
Keywords: [011]多滑移取向铜单晶体,循环形变,滞后回线,CSSC平台区
Abstract:
本文在一个较宽的塑性应变幅范围（γpl=1.1×10-4-7．2×10-3）内研究了[011]多滑移取向铜单晶体的循环形变行为.结果表明，[011]晶体的循环形变行为明显不同于[011]和[111]多滑移取向的铜单晶体.[011]晶体具有较低的初始硬化速率，即使在较高的塑性应变幅下，初始硬化速率也无明显变化.［011］晶体的循环应力-应变曲线（CSSC）在所研究的塑性应变幅范围内呈现平台区.CSSC上是否存在平台区，主要由晶体本身的滑移特点和相应的位错反应所决定.疲劳滞后回线形状参数VH在某种程度上可用于确定[011]多滑移铜单晶体的PSB萌生应力
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