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高低温处理条件下AZ31镁合金的力学性能与微观组织
发布人：上海艾荔艾金属材料有限公司www.shailiai.com
更新时间：2015-12-16
针对月球环境温度变化情形，研究了长时间低温浸泡(−196 ℃)和多次高低温交变循环处理(−196~200 ℃)对挤压态AZ31镁合金在20 ℃下的力学性能、显微组织以及断口形貌的影响。
高低温处理条件下AZ31镁合金的力学性能与微观组织Mechanical properties and microstructures of AZ31 magnesium alloy after high and low temperature treatment
针对月球环境温度变化情形，研究了长时间低温浸泡(−196 ℃)和多次高低温交变循环处理(−196~200 ℃)对挤压态AZ31镁合金在20 ℃下的力学性能、显微组织以及断口形貌的影响。研究表明：AZ31镁合金经过长时间液氮浸泡和高低温交变循环处理后，力学性能无明显变化；室温态合金的σb和δ分别为288 MPa和18.3%，经过10 d低温浸泡后σb和δ分别为292 MPa和18.7%，经过10次高低温循环后合金的σb和δ分别为294 MPa和16.9%；低温和高低温交变处理对断口形貌和相组成没有明显影响，均为准解理断裂。
In view of the lunar environment temperature change situation, the influence of long time low temperature immersion (−196 ℃) and high-low temperature alternation processing (−196−200 ℃) on the mechanical properties, microstructures and fracture surfaces of AZ31 magnesium alloy at 20 ℃ was studied. The results indicate that there are no significant changes on the mechanical properties of AZ31 magnesium alloy after liquid nitrogen immersion or temperature alternation cycle treatment. The σb and δ of AZ31 magnesium alloy at room temperature are 288 MPa and 18.3%, respectively, after 10 d cryogenic processing, they will reach 292 MPa and 18.7%, respectively. σb and δ after 10 times high-low temperature alternation processing are 294 MPa and 16.9%, individually. SEM observation and XRD results show that the fracture surface and phase constitutions do not change obviously after low temperature or high-low temperature alternation processing. And the fractures are both quasi-cleavage crack.
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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.
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