Microstructure and Mechanical Behavior of Ti-25Nb-25Zr Alloy Prepared from Pre-Alloyed and Hydride-Mixed Elemental Powders

被引：3

作者：

Sharma, Bhupendra ^{[1
]}

Vajpai, Sanjay Kumar ^{[2
]}

Kawabata, Mie ^{[3
]}

Nakano, Takayoshi ^{[4
]}

Ameyama, Kei ^{[3
]}

机构：

[1] Ritsumeikan Univ, Res Org Sci & Technol, Kusatsu 5258577, Japan

[2] Natl Inst Technol, Dept Met & Mat Engn, Jamshedpur, Bihar, India

[3] Ritsumeikan Univ, Fac Sci & Engn, Kusatsu 5258577, Japan

[4] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan

来源：

MATERIALS TRANSACTIONS | 2020年 / 61卷 / 04期

关键词：

powder metallurgy; mechanical milling; spark plasma sintering; titanium hydride; low entropy Ti-Nb-Zr alloys; TI-13NB-13ZR ALLOY; TITANIUM; DEFORMATION;

D O I：

10.2320/matertrans.MT-MK2019001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study has been undertaken on the feasibility of the powder-metallurgy manufacturing process to fabricate beta-type Ti-25Nb-25Zr alloy (mass%) for biomedical applications. The Ti-25Nb-25Zr alloy was fabricated from a mixture of TiH2 with constituent elemental powders, and from a pm-alloyed Plasma Rotating Electrode Processed (PREP) Ti-25Nb-25Zr powder, separately. it is shown that different processing methods led to different microstructures and mechanical properties. The Ti-25Nb-25Zr compact prepared by pre-alloyed powder exhibits poor strength whereas TiH2 processed Ti-25Nb-25Zr compact exhibits comparatively ultra-fine grained microstructure with significantly improved strength. The proposed fabrication method may have several opportunities to fabricate metallic alloys with enhanced mechanical properties.

引用

页码：562 / 566

页数：5

共 35 条

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