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固溶处理对7150铝合金组织和力学性能的影响
发布人：上海艾荔艾金属材料有限公司www.shailiai.com
更新时间：2015-12-21
通过OM、SEM、X射线衍射、DSC差热分析和室温拉伸性能测试，研究固溶处理对7150铝合金挤压板带组织和力学性能的影响。
固溶处理对7150铝合金组织和力学性能的影响Effect of solution treatment on microstructures and mechanical properties of 7150 aluminum alloy
通过OM、SEM、X射线衍射、DSC差热分析和室温拉伸性能测试，研究固溶处理对7150铝合金挤压板带组织和力学性能的影响。结果表明：合金固溶处理温度越高，时间越长，粗大第二相溶解越多；合金在480℃进行固溶处理时，出现过烧组织，双级固溶处理制度没有提高本合金开始出现过烧组织的温度；随着合金固溶处理时间的延长，组织出现粗化和再结晶的趋势；本合金适合采用475 ℃，2 h的单级固溶制度，经(475 ℃，2 h) + (120 ℃，24 h)固溶−峰时效处理后，合金抗拉强度、屈服强度和伸长率分别为650 MPa、600 MPa和13.5%。
The effects of solution treatment on the microstructures and mechanical properties of 7150 aluminum alloy extrusion plate were studied by OM, SEM, XRD, DSC and room temperature tensile test. The results show that the coarse second phase dissolves more adequately when the alloy is solution treated at higher temperature for longer time. The overheated structure appears in alloys when quenched at 480 ℃, and the temperature at which overheated structure appears cannot be enhanced by two-stage solution. The trend of microstructure coarsening and recrystallization appears with prolongating the solution time. The suited solution of the alloy is single-stage solution of 475 ℃, 2 h. After solution and peak aging of (475 ℃, 2 h)+(120 ℃, 24 h), the ultimate tensile strength, yield strength and elongation are 650 MPa, 600 MPa and 13.5%, respectively.
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AILIAI has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. AILIAI develops the best alloy material solutions for current and future challenges.
获取更多我们供应的合金和服务信息，请致电086-021-67660801或发电子邮件kefu@ailiaigroup.com联系我们，您也可以通过微博和微信和我们互动。
For more information on the alloys and services that we supply, call us at 086-021-67660801 or email us at kefu@ailiaigroup.com. You can also get in touch on social media, we are constantly active on Weibo and Weixin.