6082鋁合金具有卓越的耐腐蝕特性、中高強度及加工成形性，但容易因為熱加工的再結晶效應而導致粗晶生成，以連鑄連軋方式製造可避免此材料劣化情形。故本研究將連鑄連軋6082鋁合金施以不同熱處理方法並融合冷加工程序，探討其機械性質及阻抗分析。
本研究中的材料分為：原始F材、T4熱處理材 (560 ℃的固溶化熱處理2小時後水淬加上7天的自然時效)、T6熱處理材 (560 ℃的固溶化熱處理2小時後水淬加上170 ℃的人工時效4小時)、T4材經33.3%冷軋延加工量的T4R4材、T6材經33.3%冷軋延加工量的T6R4材及T6R4材再經T6熱處理的T6R4T6材。
第一部分為機械性質調查：拉伸機械性質實驗結果顯示，對比F材，熱處理材中的T4材具有高延性而T6材具有高強度，經過冷軋延後，其強度因為加工硬化而提升，但延伸率會大幅下降，當中T6R4材具有最大抗拉強度，可高達400 MPa。
比較T4R4材及T6R4材，衝擊試驗結果顯示：T4R4材及T6R4材皆屬於韌性材料；顆粒沖蝕磨耗試驗結果顯示：T4R4材及T6R4材硬度相近，但以T4R4材具有較高的耐磨耗率；疲勞試驗結果顯示：若超過降伏點，會對材料造成劣化，且T4R4有較高的疲勞阻抗。
第二部分為再結晶效應：實驗結果發現後續T6熱處理可使T6R4材再結晶而晶粒細化，達到更進一步的強化效果。

6082 aluminum alloy, which is well-known for its excellent corrosion resistance and capability of shock absorption in automotive industry, was carried out in this study. In spite of the recrystallization after hot working leaving grains coarser near the surface, this problem could be solved applying continuous casting and direct rolling, or CCDR, by which 6082 aluminum alloy was fabricated. Hence, the CCDR 6082 aluminum alloy was subjected to two types of heat treatment and cold working to enhance its mechanical properties.
There are six groups of specimens conducted in this study: as-fabricated (F), solution heat treatment at 560℃ for 2 hours followed by water quenching with 7 days of natural aging (T4) or 4 hours of artificial aging at 170℃ (T6), T4 with reduction ratio of 33.3% (T4R4), T6 with reduction ratio of 33.3% (T6R4), and T6R4 with T6 heat treatment (T6R4T6).
The first part is the investigation of mechanical properties: the result of tensile test showed that compared with F, T4 had higher ductility and the T6 had higher strength. After cold rolling, their strengths were increased due to work hardening, but the elongation was greatly reduced. T6R4 had the greatest tensile strength, which reached as high as 400 MPa.
Comparing T4R4 and T6R4, the result of Charpy impact test showed that both are ductile materials. The results of particle erosion test and tensile fatigue test showed that T4R4 had better erosion resistance and higher fatigue resistance.
The second part is the recrystallization effect: the result showed that T6R4 undergoing a further T6 heat treatment could recrystallize itself and refine the grains to fulfill strengthening effect.

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