The macroscopic relationships between true stress and true strain for pure metals such as Al and Cu and for Al-Mg alloys were investigated both experimentally and theoretically. Experimental results showed that for pure Al and Cu the relationship between stress and strain may be accurately described by an exponential-power law constitutive relationship over a wide range of strain. The validity of the new relationship is supported also by theoretical considerations when taking into account certain conditions appropriate to the main micro-mechanisms of plastic deformation. This new relationship can also be used for a description of the global work hardening of an Al-3%wt Mg alloy.
|ジャーナル||Materials Science Forum|
|出版ステータス||出版済み - 1月 1 2003|
|イベント||Thermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, スペイン|
継続期間: 7月 7 2003 → 7月 11 2003
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