Cyclic Creep Behavior of Automotive Spring Steels

机译：汽车弹簧钢的循环蠕变行为

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The cyclic creep behavior of some automotive spring steels was tested at room temperature on MTS test system. TestrnResults show that the medium-low carbon spring steels perform a three-stage creep behavior, and medium-high carbonrnspring steels show a creep behavior of two-stage. The creep behavior of main creep stage could described as Δε=ε_0·N~c,rnthe cyclic creep coefficientε_0 and cyclic creep index c, are mainly affected by carbon content, strength, stress, andrnpre -process. Under equivalent strength and working stress, the creep decreases with carbonaceous increases. Tests alsornshow that, among the tested medium-high carbon spring steels, pre -process of cyclic strain promotes creep, andrnpre-process of cyclic stress restrains creep.

机译：在室温下，在MTS测试系统上测试了一些汽车弹簧钢的循环蠕变行为。测试结果表明，中低碳弹簧钢表现出三阶段蠕变行为，而中高碳弹簧钢表现出两阶段蠕变行为。主蠕变阶段的蠕变行为可以描述为Δε=ε_0·N〜c，循环蠕变系数ε_0和循环蠕变指数c主要受碳含量，强度，应力和预处理的影响。在同等强度和工作应力下，蠕变随含碳量的增加而减小。测试还表明，在测试的中高碳弹簧钢中，循环应变的预处理会促进蠕变，而循环应力的预处理会抑制蠕变。

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来源
《The Eleventh international Pacific conference on automotive engineering(IPC-11) : Proceedings》|2001年|p.1-4|共4页
会议地点 Shanghai(CN);Shanghai(CN)
作者
Xiong Yunqi; Pu jin; Zhang Qiongmin;
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作者单位

Institute of Manufacturing Technology, Dongfeng Motor Corporation, 442001Yunqix@public.sy.hb.cn;

Institute of Manufacturing Technology, Dongfeng Motor Corporation, 442001;

Institute of Manufacturing Technology, Dongfeng Motor Corporation, 442001;

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会议组织
原文格式 PDF
正文语种 eng
中图分类汽车工程;
关键词
spring steel; cyclic creep;

机译：弹簧钢；循环蠕变;

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Cyclic Creep Behavior of Automotive Spring Steels

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