Characteristic of Microstructure and Mechanical Properties in Ni-Al-Ti Alloy System

C. S. Han; C. H. Bae; J. H. Lee

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Characteristic of Microstructure and Mechanical Properties in Ni-Al-Ti Alloy System

机译：Ni-Al-Ti合金体系的显微组织和力学性能

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A transmission electron microscope (TEM) investigation was performed on the microstructural variations and hardness changes in a Ni-Al-Ti alloy system. The hardness after a solution treatment is high in NiAl- and NiTi-base alloys, suggesting a large contribution of solid solution strengthening in this alloy system. TEM observations revealed that spinodal and binodal types of decomposition occur depending on the chemical composition and aging temperature. However, the degree of age hardening is not large compared to the considerable microstructural variation. The temperature dependence of the compressive yield strength of various NiAl-containing morphologies of Ni_2AlTi was also investigated.

机译：对Ni-Al-Ti合金系统的显微组织变化和硬度变化进行了透射电子显微镜（TEM）研究。固溶处理后的硬度在NiAl和NiTi基合金中较高，这表明该合金系统中固溶强化的作用很大。 TEM观察表明，取决于化学成分和老化温度，发生了旋节线和双节线类型的分解。但是，与相当大的微观结构变化相比，时效硬化程度并不大。还研究了Ni_2AlTi的各种含NiAl形貌的压缩屈服强度的温度依赖性。

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《Metals and Materials International》 |2009年第6期|共5页
作者
C. S. Han; C. H. Bae; J. H. Lee;
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正文语种 eng
中图分类金属学与金属工艺;
关键词
precipitation; age hardening; mechanical properties; microstructure; transmission electron microscopy;

机译：析出;时效硬化;力学性能;显微组织;透射电镜;

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Characteristic of Microstructure and Mechanical Properties in Ni-Al-Ti Alloy System

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