探析微合金化對al-cu-mg合金時效行為的影響.doc
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探析微合金化對al-cu-mg合金時效行為的影響,微合金化對al-cu-mg合金時效行為的影響全文3200余字圖文并茂摘要：本文以微合金化元素對al-cu-mg合金常規(guī)時效析出相的影響為出發(fā)點，分析了ag,si,ge(鍺),cd等元素對合金時效行為的影響，歸類為（1）完全改變常規(guī)析出相結(jié)構(gòu)，形成新析出相；（2）部分改變常規(guī)析出相結(jié)構(gòu)，提高析出相的強化效果；（3）促進析...
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微合金化對Al-Cu-Mg合金時效行為的影響
全文3200余字 圖文并茂
摘要：本文以微合金化元素對Al-Cu-Mg合金常規(guī)時效析出相的影響為出發(fā)點，分析了Ag,Si,Ge(鍺),Cd等元素對合金時效行為的影響，歸類為（1）完全改變常規(guī)析出相結(jié)構(gòu)，形成新析出相；（2）部分改變常規(guī)析出相結(jié)構(gòu)，提高析出相的強化效果；（3）促進析出相析出三種作用。分析了采用微合金化方法提高Al-Cu-Mg合金熱強性所存在的問題，并對發(fā)展趨勢進行了展望。
關(guān)鍵詞：Al-Cu-Mg合金，時效強化，錯配度，熱穩(wěn)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（鍺）,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
部分參考文獻
[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]肖代紅,王健農(nóng),陳世樸,丁冬雁.鈰對高Cu/Mg比率Al-Cu-Mg合金組織和耐熱性能的影響.中國稀土學報,2003,21(5)：564～567
[26]杜挺.稀土元素在金屬材料中的作用與機理.中國有色金屬學報,1996,6(2)：13～18
[27]肖于德,謝允安,李松瑞.耐熱鋁合金及其熱穩(wěn)強化相.鋁加工,1994,17(4):24～32
[28]董寅生,沈軍,楊英俊,李慶春.快速凝固耐熱鋁合金中的彌散相及其熱穩(wěn)定性.宇航材料工藝,2000,30 (2)：1～6
全文3200余字 圖文并茂
摘要：本文以微合金化元素對Al-Cu-Mg合金常規(guī)時效析出相的影響為出發(fā)點，分析了Ag,Si,Ge(鍺),Cd等元素對合金時效行為的影響，歸類為（1）完全改變常規(guī)析出相結(jié)構(gòu)，形成新析出相；（2）部分改變常規(guī)析出相結(jié)構(gòu)，提高析出相的強化效果；（3）促進析出相析出三種作用。分析了采用微合金化方法提高Al-Cu-Mg合金熱強性所存在的問題，并對發(fā)展趨勢進行了展望。
關(guān)鍵詞：Al-Cu-Mg合金，時效強化，錯配度，熱穩(wěn)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（鍺）,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
部分參考文獻
[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]肖代紅,王健農(nóng),陳世樸,丁冬雁.鈰對高Cu/Mg比率Al-Cu-Mg合金組織和耐熱性能的影響.中國稀土學報,2003,21(5)：564～567
[26]杜挺.稀土元素在金屬材料中的作用與機理.中國有色金屬學報,1996,6(2)：13～18
[27]肖于德,謝允安,李松瑞.耐熱鋁合金及其熱穩(wěn)強化相.鋁加工,1994,17(4):24～32
[28]董寅生,沈軍,楊英俊,李慶春.快速凝固耐熱鋁合金中的彌散相及其熱穩(wěn)定性.宇航材料工藝,2000,30 (2)：1～6
