Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys
碩士 === 國立中央大學 === 機械工程研究所 === 100 === The effects of trace elements chromium (Cr) and manganese (Mn) addition on aluminum-magnesium-silicon alloys were investigated. The alloys of interest are AA6061. Alloys design of the casted 6061, 6061+Cr and 6061+Mn aluminum alloys by melting furnace. The alloy...
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ndltd-TW-100NCU054890622015-10-13T21:22:37Z http://ndltd.ncl.edu.tw/handle/39043074696208521490 Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys 微量元素Cr、Mn對Al-Mg-Si合金之微結構及機械性質的影響 Jia-hong Wu 吳佳鴻 碩士 國立中央大學 機械工程研究所 100 The effects of trace elements chromium (Cr) and manganese (Mn) addition on aluminum-magnesium-silicon alloys were investigated. The alloys of interest are AA6061. Alloys design of the casted 6061, 6061+Cr and 6061+Mn aluminum alloys by melting furnace. The alloys were homogenizated at 550˚C for 24hrs and furnace cooling. After hot forging process, the alloys were solid solution treated at 520˚C for 2 hrs and then aged at 167˚C for 24hrs; Mechanical properties test results are reports. Moreover, the morphologies of casted and T6-heat treated after hot forging were observed by optics microscope (OM). Results indicated that after T6 treatment, the hardness of 6061, 6061+Cr and 6061+Mn aluminum alloys increase obviously. 6061-Cr0.3% has a maximum strength among 6061-Cr x wt% (x=0.1, 0.3, 0.4, 0.5). 6061-Mn 0.7% has a maximum strength among 6061-Mn y wt% (y=0.1, 0.2, 0.5, 0.7, 0.9, 1.1). The strength of homogenized alloys are lower than non-homogenized alloys. Shyong Lee 李雄 2012 學位論文 ; thesis 92 zh-TW |
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碩士 === 國立中央大學 === 機械工程研究所 === 100 === The effects of trace elements chromium (Cr) and manganese (Mn) addition on aluminum-magnesium-silicon alloys were investigated. The alloys of interest are AA6061. Alloys design of the casted 6061, 6061+Cr and 6061+Mn aluminum alloys by melting furnace. The alloys were homogenizated at 550˚C for 24hrs and furnace cooling. After hot forging process, the alloys were solid solution treated at 520˚C for 2 hrs and then aged at 167˚C for 24hrs; Mechanical properties test results are reports. Moreover, the morphologies of casted and T6-heat treated after hot forging were observed by optics microscope (OM).
Results indicated that after T6 treatment, the hardness of 6061, 6061+Cr and 6061+Mn aluminum alloys increase obviously. 6061-Cr0.3% has a maximum strength among 6061-Cr x wt% (x=0.1, 0.3, 0.4, 0.5). 6061-Mn 0.7% has a maximum strength among 6061-Mn y wt% (y=0.1, 0.2, 0.5, 0.7, 0.9, 1.1). The strength of homogenized alloys are lower than non-homogenized alloys.
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author2 |
Shyong Lee |
author_facet |
Shyong Lee Jia-hong Wu 吳佳鴻 |
author |
Jia-hong Wu 吳佳鴻 |
spellingShingle |
Jia-hong Wu 吳佳鴻 Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys |
author_sort |
Jia-hong Wu |
title |
Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys |
title_short |
Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys |
title_full |
Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys |
title_fullStr |
Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys |
title_full_unstemmed |
Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys |
title_sort |
effect of trace cr and mn addition on microstructure and mechanical properties of al-mg-si alloys |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/39043074696208521490 |
work_keys_str_mv |
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