| DC 欄位 |
值 |
語言 |
| DC.contributor | 機械工程學系 | zh_TW |
| DC.creator | 吳佳鴻 | zh_TW |
| DC.creator | Jia-hong Wu | en_US |
| dc.date.accessioned | 2012-7-16T07:39:07Z | |
| dc.date.available | 2012-7-16T07:39:07Z | |
| dc.date.issued | 2012 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=993203047 | |
| dc.contributor.department | 機械工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 本研究針對Al-Mg-Si 6061鋁合金添加微量元素Cr、Mn進行探討，所設計之三種合金6061、6061+Cr及6061+Mn鋁合金藉由熔煉爐鑄造，一批以550˚C/24h、爐冷的方式進行均質化處理，另外一批不均質化處理。這兩批分別進行450˚C熱鍛、鍛壓量70%再作T6熱處理（固溶520˚C/2h，時效167 ˚C/24h）。探討不同微量元素添加及T6處理後的機械性質以及顯微組織。
實驗結果顯示，6061、6061+Cr及6061+Mn鋁合金經由T6處理後硬度皆有明顯的提升，而強度方面在添加Cr 0.3%及Mn 0.7%時有最大值。而且已均質化之合金其強度皆小於未作均質化之合金。
| zh_TW |
| dc.description.abstract | 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.
| en_US |
| DC.subject | Cr | zh_TW |
| DC.subject | 6061 | zh_TW |
| DC.subject | Mn | zh_TW |
| DC.subject | T6熱處理。 | zh_TW |
| DC.subject | 均質化 | zh_TW |
| DC.subject | homogenization | en_US |
| DC.subject | Cr | en_US |
| DC.subject | 6061 | en_US |
| DC.subject | T6 heat treatment. | en_US |
| DC.subject | Mn | en_US |
| DC.title | 微量元素Cr、Mn對Al-Mg-Si合金之微結構及機械性質的影響 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Effect of trace Cr and Mn addition on microstructure and mechanical properties of Al-Mg-Si alloys | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |