| Effects of different tempers on precipitation hardening of 6000 series aluminium alloys |
| |
| 引用本文： | 刘宏 赵刚 刘春明 左良. Effects of different tempers on precipitation hardening of 6000 series aluminium alloys[J]. 中国有色金属学会会刊, 2007, 17(1): 122-127. DOI: 10.1016/S1003-6326(07)60059-4 |
| |
| 作者姓名： | 刘宏 赵刚 刘春明 左良 |
| |
| 作者单位： | School of Mechanical Engineering Shandong Institute of Light Industry，School of Materials and Metallurgy，Northeastern University，School of Materials and Metallurgy，Northeastern University，School of Materials and Metallurgy，Northeastern University，Ji'nan 250353，China，Shenyang 110004，China，Shenyang 110004，China，Shenyang 110004，China |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | By means of Vickers hardness,mechanical property and formability tests,the effects of different tempers on precipitation hardening of 6000 series aluminium alloys for automotive body sheets were investigated.The results indicate that the short-time pre-aging at 170℃makes for subsequent artificial aging precipitation hardening.With the increase of pre-aging time,the artificial aging hardenability increases.The aging hardening rate reaches the maximum when pre-aging time is up to 10 min,and then it decreases.The short-time pre-aging at 170℃benefits sheets to obtain lower strength under delivery condition and consequently to improve stamping formability of automotive body sheets.The effects of different tempers on precipitation hardening are much more obvious than those of the alloying elements.It is a good treatment schedule to perform pre-aging for 5 min at 170℃right after solution treatment.
|
| 关 键 词： | 铝合金 脱溶硬化 回火 可模锻性 |
| 收稿时间： | 2006-04-21 |
| 修稿时间： | 2006-09-22 |
Effects of different tempers on precipitation hardening of 6000 series aluminium alloys |
| |
| LIU Hong,ZHAO Gang,LIU Chun-ming,ZUO Liang. Effects of different tempers on precipitation hardening of 6000 series aluminium alloys[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(1): 122-127. DOI: 10.1016/S1003-6326(07)60059-4 |
| |
| Authors: | LIU Hong ZHAO Gang LIU Chun-ming ZUO Liang |
| |
| Affiliation: | 1. School of Mechanical Engineering, Shandong Institute of Light Industry, Ji''nan 250353, China;2. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
| |
| Abstract: | By means of Vickers hardness, mechanical property and formability tests, the effects of different tempers on precipitation hardening of 6000 series aluminium alloys for automotive body sheets were investigated. The results indicate that the short-time pre-aging at 170 °C makes for subsequent artificial aging precipitation hardening. With the increase of pre-aging time, the artificial aging hardenability increases. The aging hardening rate reaches the maximum when pre-aging time is up to 10 min. and then it decreases. The short-time pre-aging at 170 °C benefits sheets to obtain lower strength under delivery condition and consequently to improve stamping formability of automotive body sheets. The effects of different tempers on precipitation hardening are much more obvious than those of the alloying elements. It is a good treatment schedule to perform pre-aging for 5 min at 170 °C right after solution treatment. |
| |
| Keywords: | T4 temper pre-aging artificial aging hardenability formability |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
