2D70铝合金淬透性研究  

Hardenability of 2D70 Aluminum Alloy

作　　者：王国军[1,2] 熊柏青[1] 张永安[1] 李志辉[1] 李培跃[1] 

机构地区：[1]北京有色金属研究总院有色金属材料制备加工国家重点实验室,北京100088 [2]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《稀有金属》2009年第3期304-308,共5页Chinese Journal of Rare Metals

基　　金：国家“十一五”科技支撑课题(2007BAE38B06)资助项目

摘　　要：采用16,30℃自然水末端淬火试验方法,并通过对材料硬度和电导率指标的测试分析,研究了不同温度对2D70铝合金材料淬透性的影响,描绘出不同温度下该合金的端淬曲线,对比分析了相同条件下2D70和2124合金的端淬曲线。研究结果表明,2D70合金的淬火敏感性很小,16和30℃水温对该合金端淬效果差别不大,该合金自由端淬淬透深度至少大于150mm。Influence of different temperatures on the hardenability of 2D70 aluminum alloy was studied through tests and analysis of hardness and conductibil- ity by end quenching test in natural water at 16 and 30 ℃. The end-quenching characteristic of 2D70 aluminum alloy under different temperatures was described. The end-quenching characteristics of 2D70 and 2124 alloy under the same conditions were compared and analyzed. The study showed that the susceptibility of 2D70 alloy to quenching was slow, and the differential effects of water temperatures of 16 and 30 ℃ on ending quenching of this alloy were not obvious. The quenched depth of the alloy was bigger than 150 mm at least.

关 键 词：2D70铝合金 淬透性 末端淬火试验 端淬曲线 淬火敏感性 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG156.21[金属学及工艺—金属材料]