Effects of Mg and Mn Contents on Hot-Rolling Temperature and Resultant Tensile Properties of Al-Mg-Mn Alloys
Effects of Mg and Mn Contents on Hot-Rolling Temperature and Resultant Tensile Properties of Al-Mg-Mn Alloys
复制标题
Mg、Mn含量对Al-Mg-Mn合金热轧温度及拉伸性能的影响
DOI：
10.4028/www.scientific.net/msf.877.334
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
S. Kim
中科院分区：
文献类型：
--
作者：
Bonghwan Kim;J. Y. Lee;Y. Yoon;S. Kim
研究了Mg和Mn含量对Al-Mg-Mn合金热轧温度和拉伸性能的影响。以Al-3.5Mg-0.3合金为参照，采用铸造法制备Al-7.5Mg-0.3Mn、Al-3.5Mg-1.0Mn合金，进行热轧实验。Al-7.5Mg-0.3Mn和Al-3.5Mg-1.0Mn合金的轧制温度都必须降低，这是由于在热轧期间表面开裂，这是由含Mg相如Mg 2Al 3的分数增加引起的。在较低的轧制温度下，强化固溶和加工硬化的共同作用显著提高了热轧Al-7.5Mg-0.3Mn合金的抗拉强度。由于Mn含量增加引起的弥散强化和热轧过程中的加工硬化，热轧Al-3.5Mg-1.0Mn合金的抗拉强度也得到了提高。
The effects of Mg and Mn contents on hot-rolling temperature and resultant tensile properties of Al-Mg-Mn alloys were investigated. The Al-3.5Mg-0.3 alloy as a reference and Al-7.5Mg-0.3Mn, Al-3.5Mg-1.0Mn alloys were prepared by casting for hot-rolling experiment. The rolling temperatures of both Al-7.5Mg-0.3Mn and Al-3.5Mg-1.0Mn alloys had to be decreased due to surface cracking during hot-rolling, which is caused by increased fractions of Mg-containing phases like Mg2Al3. The tensile strength of the hot-rolled Al-7.5Mg-0.3Mn alloy was highly increased by the combined effects of enhanced solid-solution and work-hardening at lower rolling temperature. And the resultant tensile strengths of the hot-rolled Al-3.5Mg-1.0Mn alloy were also increased due to dispersoid hardening by increased Mn content and work hardening during hot-rolling.