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6063鋁合金性能的影響

                                              6063鋁合金性能的影響


6063鋁合金是AL-Mg-Si系中具有中等強度的可熱處理強化合金,Mg和Si是主要合金元素,

優選化學成分的主要工作是確定Mg和Si的百分含量(質量分數,下同)。

1.1Mg的作用和影響 Mg和Si組成強化相Mg2Si,Mg的含量愈高,Mg2Si的數量就愈多,

熱處理強化效果就愈大,型材的抗拉強度就愈高,但變形抗力也隨之增大,

合金的塑性下降,加工性能變壞,耐蝕性變壞。

1.2Si的作用和影響 Si的數量應使合金中所有的Mg都能以Mg2Si相的形式存在,

以確保Mg的作用得到充分的發揮。隨著Si含量增加,合金的晶粒變細,金屬流動性增大,

鑄造性能變好,熱處理強化效果增加,型材的抗拉強度提高而塑性降低,耐蝕性變壞。

6063鋁合金性能的影響

6063鋁合金性能的影響

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