探析微合金化对al-cu-mg合金时效行为的影响.doc
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探析微合金化对al-cu-mg合金时效行为的影响,微合金化对al-cu-mg合金时效行为的影响全文3200余字图文并茂摘要：本文以微合金化元素对al-cu-mg合金常规时效析出相的影响为出发点，分析了ag,si,ge(锗),cd等元素对合金时效行为的影响，归类为（1）完全改变常规析出相结构，形成新析出相；（2）部分改变常规析出相结构，提高析出相的强化效果；（3）促进析...
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微合金化对Al-Cu-Mg合金时效行为的影响
全文3200余字 图文并茂
摘要：本文以微合金化元素对Al-Cu-Mg合金常规时效析出相的影响为出发点，分析了Ag,Si,Ge(锗),Cd等元素对合金时效行为的影响，归类为（1）完全改变常规析出相结构，形成新析出相；（2）部分改变常规析出相结构，提高析出相的强化效果；（3）促进析出相析出三种作用。分析了采用微合金化方法提高Al-Cu-Mg合金热强性所存在的问题，并对发展趋势进行了展望。
关键词：Al-Cu-Mg合金，时效强化，错配度，热稳定性，共簇
The effects of microalloying on the ageing behavior of Al-Cu-Mg alloys
ZHANG Lin1, MIN Guanghui1,FENG Gang2, YU Huashun1
(1 Shangdong University; 2 Shangdong Power Research Institute)
Abstract: Based on the influence of microalloying elements on the traditional precipitation phases, the effects of trace addition Ag,Si,Ge（锗）,Cd on ageing behavior in Al-Cu-Mg alloys were analyzed in this paper. They were classified as followings(1)to change the structure of traditional precipitation phases completely, resulting to the creation of new phases;(2)to change the structure of traditional precipitation phases partly, improving the strengthening level and (3)to stimulate and accelerate the precipitation processes of traditional phases. The existed deficiencies of microalloying method were discussed in this paper, and the tendency of future development was predicted.
Key words: Al-Cu-Mg alloy, ageing strengthening, mispairing, heat stability, co-clustering
部分参考文献
[24]Sankaran R, Laird C. Effects of trace additions Cd,In and Sn on the interfacial structure and kinetics of growth of θ' plates in Al-Cu alloy. Mater. Sci. Eng., 1974, 14: 271～279
[25]肖代红,王健农,陈世朴,丁冬雁.铈对高Cu/Mg比率Al-Cu-Mg合金组织和耐热性能的影响.中国稀土学报,2003,21(5)：564～567
[26]杜挺.稀土元素在金属材料中的作用与机理.中国有色金属学报,1996,6(2)：13～18
[27]肖于德,谢允安,李松瑞.耐热铝合金及其热稳强化相.铝加工,1994,17(4):24～32
[28]董寅生,沈军,杨英俊,李庆春.快速凝固耐热铝合金中的弥散相及其热稳定性.宇航材料工艺,2000,30 (2)：1～6
全文3200余字 图文并茂
摘要：本文以微合金化元素对Al-Cu-Mg合金常规时效析出相的影响为出发点，分析了Ag,Si,Ge(锗),Cd等元素对合金时效行为的影响，归类为（1）完全改变常规析出相结构，形成新析出相；（2）部分改变常规析出相结构，提高析出相的强化效果；（3）促进析出相析出三种作用。分析了采用微合金化方法提高Al-Cu-Mg合金热强性所存在的问题，并对发展趋势进行了展望。
关键词：Al-Cu-Mg合金，时效强化，错配度，热稳定性，共簇
The effects of microalloying on the ageing behavior of Al-Cu-Mg alloys
ZHANG Lin1, MIN Guanghui1,FENG Gang2, YU Huashun1
(1 Shangdong University; 2 Shangdong Power Research Institute)
Abstract: Based on the influence of microalloying elements on the traditional precipitation phases, the effects of trace addition Ag,Si,Ge（锗）,Cd on ageing behavior in Al-Cu-Mg alloys were analyzed in this paper. They were classified as followings(1)to change the structure of traditional precipitation phases completely, resulting to the creation of new phases;(2)to change the structure of traditional precipitation phases partly, improving the strengthening level and (3)to stimulate and accelerate the precipitation processes of traditional phases. The existed deficiencies of microalloying method were discussed in this paper, and the tendency of future development was predicted.
Key words: Al-Cu-Mg alloy, ageing strengthening, mispairing, heat stability, co-clustering
部分参考文献
[24]Sankaran R, Laird C. Effects of trace additions Cd,In and Sn on the interfacial structure and kinetics of growth of θ' plates in Al-Cu alloy. Mater. Sci. Eng., 1974, 14: 271～279
[25]肖代红,王健农,陈世朴,丁冬雁.铈对高Cu/Mg比率Al-Cu-Mg合金组织和耐热性能的影响.中国稀土学报,2003,21(5)：564～567
[26]杜挺.稀土元素在金属材料中的作用与机理.中国有色金属学报,1996,6(2)：13～18
[27]肖于德,谢允安,李松瑞.耐热铝合金及其热稳强化相.铝加工,1994,17(4):24～32
[28]董寅生,沈军,杨英俊,李庆春.快速凝固耐热铝合金中的弥散相及其热稳定性.宇航材料工艺,2000,30 (2)：1～6
