Prediction of hardness of aluminum alloy 7055 by quench factor analysis

被引：5
|
作者：
Liu, S. D. [1 ]
Zhang, X. M. [1 ]
Huang, Z. B. [1 ]
You, J. H. [1 ]
机构：
[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM | 2007年 / 546-549卷
基金：
中国国家自然科学基金;
关键词：
aluminum alloy 7055; quench factor analysis; TTP curve; hardness;
D O I：
10.4028/www.scientific.net/MSF.546-549.881
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Vickers hardness time-temperature-properties (TTP) curve of aluminum alloy 7055 was evaluated by interrupted quench technique. The critical temperature range of TTP curve was determined from 210 degrees C to 420 degrees C with the nose temperature of 355 degrees C. The hardness decreased rapidly with isothermal duration in the critical temperature range. The hardness of aluminum alloy 7055 was predicted by quench factor analysis using the TTP curve and cooling curves. The predicted hardness agreed reasonably well with the measured results. The influence of time step and summation temperature range on the predicted results was studied. The cooling rate through the critical temperature range had dominant influence on the final hardness of the alloy.
引用
收藏
页码：881 / +
页数：2
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