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首页> 外文期刊>Materials Research Letters >High strength, deformable nanotwinned Al–Co alloys
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High strength, deformable nanotwinned Al–Co alloys

机译:高强度,可变形的纳米孪晶铝钴合金

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Aluminum (Al) alloys have been widely used in the transportation industry. However, most high-strength Al alloys to date have limited mechanical strength, on the order of a few hundred MPa, which is much lower than the flow stress of high-strength steels. In this study, we show the fabrication of nanocrystalline Al alloys with high-density growth twins enabled by a few atomic percent of Co solute. In situ uniaxial compression tests show that the flow stress of Al–Co solid solution alloys exceeds 1.5?GPa, while good work hardening capability is maintained. This study provides a new perspective on the design of high-strength Al alloys for various applications.
机译:铝(Al)合金已广泛用于运输行业。然而,迄今为止,大多数高强度铝合金具有有限的机械强度,大约为数百MPa,这远低于高强度钢的流动应力。在这项研究中,我们显示了具有高密度生长孪晶的纳米晶铝合金的制造,该孪晶由少量的原子溶质实现。 原位单轴压缩试验表明,Al-Co固溶合金的流变应力超过1.5?GPa,同时保持了良好的加工硬化能力。这项研究为各种应用的高强度铝合金设计提供了新的视角。

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