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
收藏
页码：562 / 566
页数：5
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