• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Improving room-temperature stretch formability of a high-alloyed Mg-Al-Ca-Mn alloy sheet by a high-temperature solution-treatment
【24h】

Improving room-temperature stretch formability of a high-alloyed Mg-Al-Ca-Mn alloy sheet by a high-temperature solution-treatment

机译：通过高温溶液处理改善高合金Mg-Al-Ca-Ca-Mn-Ca-Mn合金板的室温拉伸性

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

Various solution-treatments were applied on a rapidly solidified and subsequently rolled Mg-7.50Al-l.07Ca-0.17Mn (mass%) alloy sheet, and a room-temperature stretch formability, tensile properties, microstructures, and textures of the solution-treated sheets have been investigated. Although the solution-treatment at 400 °C gives high strengths, the sheet shows poor room-temperature stretch formability with the Index Erichsen value of 4.8 mm due to densely dispersed second phase particles. Also, the particles tend to distribute to the rolling direction, leading to limited elongation to failure of 11.0% along the transverse direction. The solution-treatment at higher temperature leads to the sparse and relatively uniform dispersion of the particles. This results in the significant improvement in the room-temperature stretch formability and ductility. The Index Erichsen increases to 6.8 mm by the solution-treatment at 450 °C for 4 h, and the sheet shows large elongation to failure of 19.1% and 17.1% along the rolling and transverse directions, respectively. The sheet also exhibits high strengths and in-plane isotropic properties, tensile strength over 320 MPa and 0.2% proof stress of～180 MPa could be obtained due to fine grain structure with the average grain size of 9.5μm.
机译：施加各种溶液处理在快速固化的和随后的轧制的Mg-7.50Al-17Ca-0.17Mn（质量％）合金板上，以及室温拉伸成形性，拉伸性能，微观结构和纹理的织物 - 已经研究过处理的床单。虽然400℃的溶液处理给出高强度，但由于浓密分散的第二相颗粒，该片材显示出较差的室温拉伸成形性，其指数Erichsen值为4.8mm。而且，颗粒倾向于分配到滚动方向，导致沿横向的11.0％的延伸有限。较高温度下的溶液处理导致颗粒的稀疏和相对均匀的分散体。这导致室温拉伸成形性和延展性的显着改善。在450℃下，450℃的溶液处理将指数Erichsen分别在450℃下溶液处理增加到6.8mm，并且沿轧制和横向的速度分别显示出15.1％和17.1％的延长伸长率。纸张还表现出高强度和面内各向同性特性，由于细晶粒结构的细粒尺寸为9.5μm，可以获得超过320MPa的拉伸强度和0.2％的致敏应力〜180MPa。

著录项

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