帮助 关于我们

返回检索结果

Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc)合金的显微组织及其低周疲劳行为
MICROSTRUCTURES AND LOW-CYCLE FATIGUE BEHAVIOR OF Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc) ALLOY

查看参考文献27篇

车欣 1   梁兴奎 2   陈丽丽 3   陈立佳 1 *   李锋 1  
文摘 为了确定稀土元素Sc对T6态铸造Al-9.0%Si-4.0%Cu-0.4%Mg合金（质量分数）的低周疲劳行为的影响规律，研究了T6态铸造Al-9.0%Si-4.0%Cu-0.4%Mg合金和Al-9.0%Si-4.0%Cu-0.4%Mg-0.3%Sc合金的低周疲劳行为.结果表明，在低的外加总应变幅下，Al-9.0%Si-4.0%Cu-0.4%Mg合金在整个疲劳变形期间均表现为循环应变硬化，Al-9.0%Si-4.0%Cu-0.4% Mg-0.3%Sc合金在疲劳变形初期表现为循环应变硬化，在疲劳变形后期则表现为循环稳定；当外加总应变幅较高时，A1-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc)合金均呈现循环应变硬化.Sc的加入可以有效地提高T6态Al-9.0%Si-4.0%Cu-0.4%Mg合金的循环变形抗力和低周疲劳寿命.在较低的外加总应变幅下，T6态Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc)合金的循环变形机制为平面滑移，当外加总应变幅较高时则为波状滑移机制.
其他语种文摘 The Al-Si-Cu-Mg cast aluminum alloys have high mechanical properties and good cast performance. Due to their excellent comprehensive properties, the Al-Si-Cu-Mg cast aluminum alloys have wide application, and have become one of the most important structural materials applied in the equipment manufacturing industry. Actually, many key components in practical engineering application are often subjected to the alternating load, and thus the fatigue failure has become an important factor which concerns the safety and economy for those structures used in various engineering fields. Although some researches for the fatigue behavior of aluminum alloys have been performed, mainly focus on the regularity understanding. Especially, the influences of rare earth elements and heat-treat condition on the low-cycle fatigue behavior of aluminum alloys have not been comprehensive ly revealed. Obviously, the investigation concerning the microstructure and fatigue property of the Al-Si-Cu-Mg cast aluminum alloys can not only provide the theoretical basis for the development of new type cast aluminum alloys but also the reliable theoretical foundation for the safety design and reasonable use of these alloys. In order to determine the influence of rare earth element Sc on the low-cycle fatigue behavior of casting Al-9.0%Si-4.0%Cu-0.4%Mg alloy with T6 treated state, the cyclic stress response behavior, fatigue life behavior and cyclic deformation mechanism of the Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc) cast aluminum alloys with T6 treated states under low-cycle fatigue loading condition were investigated. The results show that at the low total strain amplitude, the Al-9.0%Si-4.0%Cu-0.4%Mg alloy exhibits the cyclic strain hardening during whole fatigue deformation, while the Al-9.0%Si-4.0%Cu-0.4%Mg-0.3%Sc alloys exhibit the cyclic strain hardening in the initial stage of fatigue deformation and then the stable cyclic stress response in the later stage of fatigue deformation. At the higher total strain amplitudes, the Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc) alloys exhibit the cyclic strain hardening. The addition of Sc can effectively enhance the cyclic deformation resistance and prolong the fatigue lives of the Al-9.0%Si-4.0% Cu-0.4%Mg alloy with T6 treated state. At the lower total strain amplitudes, the cyclic deformation mechanism of the Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc) alloys with T6 treated state is the plane slip, while at the higher total strain amplitudes, the cyclic deformation mechanism becomes the wavy slip.
来源 金属学报 ,2014,50(9):1046-1054 【核心库】
DOI 10.11900/0412.1961.2013.00843
关键词 Al-Si-Cu-Mg合金 ; Sc ; T6处理 ; 低周疲劳 ; 疲劳寿命 ; 循环应力响应 ; 循环变形机制
地址

1. 沈阳工业大学材料科学与工程学院, 沈阳, 110870  

2. 新东北电气集团（沈阳）高压开关有限公司, 沈阳, 110025  

3. 沈阳晨光弗泰波纹管有限公司, 沈阳, 110141

语种 中文
文献类型 研究性论文
ISSN 0412-1961
学科 金属学与金属工艺
基金 辽宁省教育厅科学研究计划项目 ;  沈阳市科技局科学技术研究项目
文献收藏号 CSCD:5232402

参考文献 共 27 共2页

1.  Wang X. Effects of Sc, Zr and Ti on the microstructure and properties of Al alloys with high Mg content. Rare Met,2010,29(1):66 CSCD被引 10 次    
2.  莫德峰. 材料工程,2010(7):92 CSCD被引 1 次    
3.  Wang G Q. Mater Lett,2003,57:4083 CSCD被引 20 次    
4.  Moizumi K. Mater Sci Forum,2002,396/402:1371 CSCD被引 1 次    
5.  Caceres C H. Acta Mater,1996,44:15 CSCD被引 13 次    
6.  Wang Q G. Metall Mater Trans, A,2003,34:2901 CSCD被引 26 次    
7.  陈振中. A357铸造铝合金疲劳特性及热处理的影响. 轻金属,2010(7):58 CSCD被引 8 次    
8.  Bray G H. Int J Fatigue,2001,23:265 CSCD被引 16 次    
9.  Manson S S. Exp Mech,1965,5:193 CSCD被引 77 次    
10.  Nieslony A. Int J Fatigue,2008,30:1967 CSCD被引 4 次    
11.  Miura Y. Mater Sci Forum,2000,331/337:1031 CSCD被引 8 次    
12.  周昆. 中国有色金属学报,1997,7:97 CSCD被引 1 次    
13.  Kendig K L. Acta Mater,2002,50:4165 CSCD被引 95 次    
14.  Li F. J Mater Sci,2005,40:1529 CSCD被引 3 次    
15.  Kendig K L. Acta Mater,2004,50:4165 CSCD被引 95 次    
16.  Sjolander E. J Mater Process Technol,2010,210:1249 CSCD被引 37 次    
17.  Kim M. Met Mater Int,2004,10:513 CSCD被引 4 次    
18.  周明哲. 博士学位论文,2010 CSCD被引 1 次    
19.  Dvydov V G. Mater Sci Eng, A,2000,280:30 CSCD被引 83 次    
20.  Watanabe C. Mater Sci Eng, A,2004,387/389:552 CSCD被引 3 次    
引证文献 6 篇

1 张青来 AZ80-T6挤压镁合金激光冲击温强化和低周疲劳行为 中国激光,2015,42(11):1103004-1-1103004-8
CSCD被引 1 次

2 张志鹏 Sc对固溶时效态Al-4Cu-1Nd合金低周疲劳性能的影响 金属热处理,2018,43(1):53-56
CSCD被引 2 次

显示所有6篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护：中国科学院文献情报中心
地址：北京中关村北四环西路33号 邮政编码：100190 联系电话：(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号