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Modification of Lattice Structures and Mechanical Properties of Metallic Materials by Energetic Ion Irradiation and Subsequent Thermal Treatments

机译:用电离子照射和随后的热处理改变金属材料的晶格结构和机械性能

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When materials are irradiated with high-energy ions, their energies are transferred to electrons and atoms in materials, and the lattice structures of the materials are largely changed to metastable or non-thermal equilibrium states, causing the modification of several physical properties. There are two processes for the material modification by ion irradiation; one is “the irradiation-enhanced process”, and the other is “the irradiation-induced process”. In this review, two kinds of recent results for the microstructural changes and the modifications of mechanical properties will be summarized: one is the hardness modification of dilute aluminum alloys, which is a result of the irradiation-enhanced process, and the other is the hardness modification of Ni-based intermetallic compounds as a result of the irradiation-induced process. The effect of the subsequent thermal treatment on the microstructures and the hardness for ion-irradiated dilute aluminum alloys is quite different from that for Ni-based intermetallic compounds. This result reflects the difference between the irradiation-enhanced process and the irradiation-induced process. Finally, possibilities of the ion irradiation and subsequent thermal treatment to industrial applications will also be discussed.
机译:当用高能离子照射材料时,将它们的能量转移到材料中的电子和原子,并且材料的晶格结构大大改变为亚稳态或非热平衡状态,导致若干物理性质的改变。通过离子照射有两种材料改性的方法;一个是“照射增强过程”,另一个是“照射引起的过程”。在本文中,将总结两种最近的微观结构变化的结果和机械性能的改性:一个是稀铝合金的硬度改性,这是辐照增强过程的结果,另一个是硬度照射诱导的方法的改变为镍基金属间化合物。随后的热处理对微结构和离子照射稀铝合金硬度的影响与Ni基金金属化合物的微观结构和硬度完全不同。该结果反映了照射增强过程与照射诱导的过程之间的差异。最后,还将讨论离子照射和随后的产业应用的热处理的可能性。

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