...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Microstructural characterization and mechanical properties of dissimilar friction welding of 1060 aluminum to AZ31B magnesium alloy
【24h】

Microstructural characterization and mechanical properties of dissimilar friction welding of 1060 aluminum to AZ31B magnesium alloy

机译：1060铝与AZ31B镁合金异种摩擦焊接的组织和力学性能

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

Dissimilar welding of aluminum bars and magnesium bars was produced by the friction welding technique. The interfacial microstructure characteristics was evaluated after friction welding of Al-Mg alloy using optical microscopy, scanning electron microscopy, as well as X-ray diffraction analysis. Friction and forge pressure were selected as variable parameters. The friction time was maintained at 10 s for a rotational speed of 2800 rpm. The chemical compositions of the interfaces of the welded joints were determined by using energy dispersive spectroscopy. Experimental results showed that intermetallic compounds (IMCs), consisting of phase β-Al_3Mg_2 and γ-Al_(12)Mg_(17), were generated in the interfaces of the Al and Mg alloys. When the friction and forge pressure increased the thickness of IMCs layer at the interfaces decreased as a result of more mass discarded from the welding interfaces. Heavy thickness of IMCs layer seriously deteriorated the mechanical properties of the joints. Microcracks were generated along the welded interfaces of all the welded samples. Formation of microcracks could be controlled effectively under the higher friction and forge pressure. Mechanical evaluations were conducted by determining microhardness and the tensile tests. It was observed that the tensile strength of the joints depended on the friction and forge pressure and the maximum tensile strength was 138 MPa.
机译：铝棒和镁棒的异种焊接是通过摩擦焊接技术进行的。使用光学显微镜，扫描电子显微镜以及X射线衍射分析法对Al-Mg合金进行摩擦焊接后，评估了界面组织特征。选择摩擦力和锻造压力作为可变参数。对于2800 rpm的转速，摩擦时间保持在10 s。焊接接头界面的化学成分是通过能量色散光谱法确定的。实验结果表明，在Al和Mg合金的界面中生成了由相β-Al_3Mg_2和γ-Al_（12）Mg_（17）组成的金属间化合物（IMC）。当摩擦力和锻造压力增加时，界面处IMC层的厚度减小，这是由于从焊接界面中丢弃了更多的质量。 IMCs层厚太厚会严重破坏接头的机械性能。沿所有焊接样品的焊接界面产生了微裂纹。在较高的摩擦力和锻造压力下，可以有效地控制微裂纹的形成。通过确定显微硬度和拉伸试验进行机械评估。可以看出，接头的抗拉强度取决于摩擦力和锻造压力，最大抗拉强度为138 MPa。

著录项

  • 来源
    《Materials Science and Engineering》 |2015年第1期|170-180|共11页
  • 作者

    Zhida Liang; Guoliang Qin; Liyuan Wang; Xiangmeng Meng; Fei Li;

  • 作者单位

    Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, PR China;

    Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, PR China,Qianfoshan Campus of Shandong University, 17923 Jingshi Road, Jinan 250061, PR China;

    Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, PR China;

    Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, PR China;

    Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, PR China;

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

    Friction welding; Aluminum; Magnesium; Microstructure; Tensile strength;

    机译：摩擦焊接;铝;镁;微观结构抗拉强度;

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