介绍了过渡族金属元素锰在铝中的固溶度变化特点及锰的存在形式;重点讨论了过渡族元素锰对7000系高强铝合金时效行为和力学性能(拉伸强度、延伸率、断裂韧性及抗应力腐蚀性能等)的有益作用及作用机理.铝合金中添加一定量的锰,不影响铝合金的时效动力学,但却明显提高铝合金的强度,对铝合金韧性(延伸率和断裂韧性)、抗应力腐蚀性能等有一定的作用.在现代高强铝合金的研发中,锰已成为一种重要的合金化元素.
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