Abdo Hany S, Seikh Asiful H, Mohammed Jabair Ali, Soliman Mahmoud S
Mechanical Engineering Department, King Saud University, P.O. Box 800, Al-Riyadh 11421, Saudi Arabia.
Materials (Basel). 2021 Jul 16;14(14):3971. doi: 10.3390/ma14143971.
The present investigation deals with a comprehensive study on the production of aluminum based alloys with the incorporation of different alloying elements and their effect on its electrical conductivity and mechanical properties. Casting of pure aluminum with different concentration and combinations of alloying additives such as cupper (Cu), magnesium (Mg) and silver (Ag) were carried out using a graphite crucible. The as-cast microstructure was modified by hot rolling followed by different heat-treated conditions viz., annealing, normalizing, quenching, and age hardening. The mechanical properties and electrical conductivity of the produced heat-treated alloys sheets under various processing conditions were carried out using tensile testing, hardness, and electrical resistivity measurements. It was found that by increasing the alloying elements content, yield strength results increased significantly by more than 250% and 500% for the as rolled and 8 h aged Al-Cu-Mg alloy, respectively. On the other hand, the electrical conductivity reduces slightly with -14.6% and -16.57% for the as rolled and 8 h aged of the same Al-Cu-Mg alloy, respectively.
本研究涉及对含不同合金元素的铝基合金的生产及其对电导率和力学性能影响的全面研究。使用石墨坩埚对不同浓度和组合的合金添加剂（如铜（Cu）、镁（Mg）和银（Ag））与纯铝进行铸造。通过热轧并随后进行不同的热处理条件（即退火、正火、淬火和时效硬化）来改变铸态微观结构。在各种加工条件下，对所生产的热处理合金板材的力学性能和电导率进行拉伸试验、硬度测试和电阻率测量。结果发现，通过增加合金元素含量，对于轧制态和8小时时效的Al-Cu-Mg合金，屈服强度分别显著提高超过250%和500%。另一方面，对于相同的Al-Cu-Mg合金，轧制态和8小时时效态的电导率分别略有降低，降幅为-14.6%和-16.57%。
Zotero 插件
