Microstructure and Mechanical Properties of Low-Density NbTiAlVZr Alloy

被引：0

作者：

Wang Feng ^{[1
]}

Zheng Xin ^{[1
]}

Bai Run ^{[1
]}

Cai Xiaomei ^{[1
]}

Zhang Xiaoming ^{[1
]}

Wang Donghui ^{[1
]}

Li Zhongkui ^{[1
]}

机构：

[1] NW Inst Nonferrous Met Res, Ctr Refractory Met, Xian 710016, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2011年 / 40卷 / 11期

关键词：

low-density; niobium alloy; microstructure; mechanical properties; TRANSFORMATIONS; POWDERS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A kind of low-density niobium-based alloy NbTiAlVZr with density of 5.9 g/cm(3), the lowest density for refractory alloys, was prepared by arc-melting and processing method. The microstructure and mechanical properties were characterized by optical microscopy (OM), transmission electron microscope (TEM) and tensile test. Results show that the average ultimate tensile strength (UTS) and elongation of the samples are 990 MPa, 16% at room temperature, respectively and 80 MPa, 44% at 1100 degrees C, respectively. This new alloy combines TiC nano-particle dispersion strengthening with solution strengthening to increase the UTS, and retains enough plasticity for hot and cold processing.

引用

页码：1972 / 1975

页数：4

共 11 条

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