...
首页> 外文期刊>Materials Science and Engineering >High strength aluminum cast alloy: A Sc modification of a standard Al-Si-Mg cast alloy
【24h】

High strength aluminum cast alloy: A Sc modification of a standard Al-Si-Mg cast alloy

机译:高强度铝铸造合金:标准Al-Si-Mg铸造合金的Sc改性

获取原文
获取原文并翻译 | 示例
           

摘要

A standard Aluminum-Silicon-Magnesium cast alloy (A357 foundry alloy without Beryllium) modified with different weight percentages of Scandium (Sc), has been studied to evaluate the effects of Sc contents on microstructure and strength. Study has been conducted under optimized parameters of melting, casting and heat treatment. Characterization techniques like optical microscopy, SEM, TEM and tensile testing were employed to analyze the microstructure and mechanical properties. Results obtained in this research indicate that with the increase of Sc contents up to 0.4 wt%, grain size is decreased by 80% while ultimate tensile strength and hardness are increased by 28% and 19% respectively. Moreover along with the increase in strength, elongation to failure is also increased up to 165%. This is quite interesting behavior because usually strength and ductility have inverse relationship.
机译:研究了用不同重量百分比的Scan(Sc)改性的标准铝硅镁镁铸造合金(不含铍的A357铸造合金),以评估Sc含量对显微组织和强度的影响。已经在熔化,铸造和热处理的优化参数下进行了研究。采用光学显微镜,SEM,TEM和拉伸测试等表征技术来分析组织和力学性能。该研究获得的结果表明,随着Sc含量增加到0.4 wt%,晶粒尺寸减小80%,而极限抗拉强度和硬度分别增加28%和19%。此外,随着强度的增加,断裂伸长率也增加了高达165%。这是非常有趣的行为,因为通常强度和延展性成反比关系。

著录项

  • 来源
    《Materials Science and Engineering》 |2014年第16期|122-126|共5页
  • 作者单位

    Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Material Science and Engineering, Beihang University, Beijing 100191, China;

    Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Material Science and Engineering, Beihang University, Beijing 100191, China;

    Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Material Science and Engineering, Beihang University, Beijing 100191, China;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

    Center for Advanced Die Engineering and Technology, Gifu University, 1-1 Yanagido, Gifu City, Gifu 501-1193, Japan;

    Hebei Sitong New Metal Material Co., Ltd., Baoding 071105, China;

    Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Material Science and Engineering, Beihang University, Beijing 100191, China;

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

    High strength; Cast alloys; Scandium; Dispersoids; Grain boundary pinning;

    机译:高强度;铸造合金;钪;分散体;晶界钉扎;

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