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| 喷射成形高锌Al-Zn-Mg-Cu合金的时效行为 | |
| 引用本文： | 崔华,王洪斌,程军胜,郝斌,段先进,张济山.喷射成形高锌Al-Zn-Mg-Cu合金的时效行为[J].北京科技大学学报,2006,28(10):937-940. |
| 作者姓名： | 崔华 王洪斌 程军胜 郝斌 段先进 张济山 |
| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083 2. 鞍山科技大学材料科学与工程学院,鞍山,114044;北京科技大学新金属材料国家重点实验室,北京,100083 3. 北京科技大学新金属材料国家重点实验室,北京,100083 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 系统研究了喷射成形高锌Al-Zn-Mg-Cu合金在不同时效处理条件下的显微组织与力学性能.结果表明:自然时效合金在晶界处已析出强化相;单级时效合金随时效时间的延长,晶内和晶界析出相逐渐粗化;双级时效合金的析出相进一步粗化,并且晶界析出相为断续特征;回归再时效合金具有较细的晶内组织及类似于双级时效的晶界组织.同时发现,双级时效合金的抗拉强度比峰时效合金的强度下降了13%左右,而回归再时效合金的强度优于峰时效合金的强度. |
| 关 键 词： | 高锌铝合金 喷射成形 显微组织 力学性能 时效行为 喷射成形 高锌 时效合金 时效行为 spray forming alloy zinc high behavior 回归再时效 强度比 发现 双级时效 组织与力学性能 金具 特征 晶界析出相 粗化 晶内 延长 |
| 收稿时间： | 2005-08-03 |
| 修稿时间： | 2006-06-08 |
Aging behavior of high zinc Al-Zn-Mg-Cu alloy prepared by spray forming |
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| CUI Hua,WANG Hongbin,CHENG Junsheng,HAO Bin,DUAN Xianjin,ZHANG Jishan.Aging behavior of high zinc Al-Zn-Mg-Cu alloy prepared by spray forming[J].Journal of University of Science and Technology Beijing,2006,28(10):937-940. | |
| Authors: | CUI Hua WANG Hongbin CHENG Junsheng HAO Bin DUAN Xianjin ZHANG Jishan |
| Institution: | 1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China; 2. Materials Science and Engineering School, Anshan University of Science and Technology, Anshan 114044, China; 3. The State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China |
| Abstract: | The microstructure and mechanical properties of high Zn Al-Zn-Mg-Cu aluminum alloys prepared by spray forming technology with different aging treatments were investigated. The results showed that strengthening phases precipitated from grain boundary during natural aging treatment,and with the prolong action of aging time the precipitate phases of single aging alloys grew up gradually. The precipitate phases of double aging alloys got coarsened and the precipitate phases of grain boundary were intermittence. The regression-reaging treated alloys possessed fine grain-interior precipitate phases and the discontinuous grain-boundary phases as the same as those of two-step aging alloys. Compared with peak aging alloys,the ultimate tensile strength (UTS) of two-step aging alloys reduced by about 13%,but UTS of regression-reaging treated alloys excelled that of peak aging alloys. |
| Keywords: | high zinc aluminum alloys spray forming microstructure mechanical properties aging precipitation behavior |
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