...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >A novel die-casting Mg alloy with superior performance: Study of microstructure and mechanical behavior
【24h】

A novel die-casting Mg alloy with superior performance: Study of microstructure and mechanical behavior

机译：一种新型压铸镁合金，具有卓越的性能：研究微观结构和机械性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, a novel Mg-6Y-3Zn-lAl (WZA631, wt.%) alloy with great performance is successfully prepared through high pressure die-casting method, and microstructure characteristics and mechanical behavior are systematically investigated. Results show that the WZA631 alloy is primarily composed of equiaxed α-Mg grain, block and irregular (Al,Zn)_2Y phases, as well as honeycomb-shaped 18R long period stacking ordered (LPSO) phase. The a-Mg grain has finer average grain size than other die-casting Mg alloys and (Al,Zn)_2Y phase with cubic structure (a = 0.76 nm) is firstly reported. Mechanical tests demonstrate that yield strength, ultimate tensile strength, and elongation of the studied alloy at room temperature are 175 MPa, 281 MPa and 9.8%, respectively, which is better compared with existing commercial or some newly die-casting alloys. For the yield strength, grain boundary strengthening, solid solution strengthening and second phase strengthening are dominant contribution mechanisms. Superior ultimate tensile strength and elongation is attributed to the abnormal work-hardening effect in stage Ⅲ due to joint action of solute atoms (Y and Zn) as well as coherent LPSO phases. Underlying principles of grain refinement, strengthening effect and work-hardening are well discussed.
机译：在这项工作中，通过高压压铸方法成功地制备了一种具有良好性能的Mg-6Y-3zn-lal（WZA631，WT.％）合金，系统地研究了微观结构特性和机械行为。结果表明，WZA631合金主要由等轴α-Mg晶粒，块和不规则（Al，Zn）_2Y阶段组成，以及蜂窝状18R长时段堆叠（LPSO）相。首先报道，A-Mg晶粒具有比其他压铸Mg合金的平均平均晶粒尺寸比其他压铸Mg合金，（Al，Zn）_2Y相位相相（A = 0.76nm）。机械试验表明，在室温下，研究的合金的屈服强度，最终拉伸强度和伸长率分别是175MPa，281MPa和9.8％，与现有的商业或一些新压铸合金相比，更好。对于屈服强度，晶界强化，固体溶液强化和第二相强化是显性贡献机制。由于溶质原子（Y和Zn）的关节作用以及相干的LPSO相，Ⅲ的终极抗拉强度和伸长率归因于Ⅲ期Ⅲ期的异常工作 - 硬化效应。谷物细化，强化效果和工作硬化的基础原则都熟悉。

著录项

  • 来源
    《Materials Science and Engineering》 |2021年第20期|140655.1-140655.10|共10页
  • 作者

    Yang Bai; Bing Ye; Liyang Wang; Beibei Zhao; Xin Yu; Yong Lu; Xiangyang Kong; Wenjiang Ding;

  • 作者单位

    National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai 200240 China;

    National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai 200240 China;

    National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai 200240 China;

    National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai 200240 China;

    National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai 200240 China;

    Shandong Yabaite Technology Co. Ltd Shandong 277116 China;

    Institute of Materials for Mobile Energy School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China;

    National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai 200240 China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mg-Y-Zn alloys; High pressure die-casing; Mechanical properties; Grain refinement; Strengthening effect;

    机译：Mg-Y-Zn合金;高压模具套管;机械性能;谷物改进;加强效果;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号