阮建明,张桃梅,张祁,王葆奇,杨海林

• 1:中南大学粉末冶金研究院

摘要(Abstract)：

采用粉末冶金方法制备了50Nb-20Ti-Zr(mass%)合金,并研究了固溶处理对其组织和性能的影响。结果表明:当固溶时间为6 h时,该合金的典型组织是以条幅分解为基础的片层状组织,并且随固溶温度的升高,晶界无析出带现象越明显,合金的弹性模量没有明显的变化,但其断裂强度有所下降;当固溶时间为18 h时,随固溶温度的升高,合金的组织呈现出"片层状-球化-针片状-等轴化"的演化过程,合金的弹性模量与断裂强度均逐渐增加。合金的断口形貌是由塑性韧窝、河流花样和平行分布的准解理小刻面组成,属于韧性断裂和脆性断裂组合的混合型断裂。

关键词(KeyWords)： 铌钛锆合金;粉末冶金;热处理;生物材料;调幅分解

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51404302)

作者(Author): 阮建明,张桃梅,张祁,王葆奇,杨海林

DOI: 10.13289/j.issn.1009-6264.2018-0380

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