Influence of Process Parameters on Mechanical and Corrosion Behavior of DED-Processed Biomedical Ti-35Nb-7Zr-5Ta Alloy

被引：9
|
作者：
Nartu, Mohan Sai Kiran Kumar Yadav [1 ,2 ]
Flannery, David [1 ,2 ]
Mazumder, Sangram [1 ,2 ]
Mantri, Srinivas A. [1 ]
Joshi, Sameehan S. [1 ]
Ayyagari, Aditya V. [2 ]
McWilliams, Brandon [3 ]
Cho, Kyu [3 ]
Dahotre, Narendra B. [1 ,2 ]
Banerjee, Rajarshi [1 ,2 ]
机构：
[1] Univ North Texas, Ctr Agile & Adapt Mfg, Denton, TX 76207 USA
[2] Univ North Texas, Dept Mat Sci & Engn, Denton, TX 76207 USA
[3] US Army, Weap & Mat Res Directorate, Res Lab, Aberdeen Proving Ground, MD 21005 USA
来源：
JOM | 2021年 / 73卷 / 06期
关键词：
37;
D O I：
10.1007/s11837-021-04675-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The laser-engineered net-shaping (LENSTM) process was employed for directed energy deposition (DED) of Ti-35Nb-7Zr-5Ta (wt.%) or TNZT, a low modulus metastable beta-Ti alloy for biomedical applications. The laser power was varied in the range of 400-600 W, while keeping all other parameters constant. A change in the overall grain morphology was noted in the sample with an increase in the laser power. The higher laser power samples showed more columnar grains compared to the equiaxed grains observed in the 400-W condition. The DED-processed TNZT alloys exhibited a combination of high tensile yield strength (similar to 500 MPa) and ductility (similar to 25%). Moreover, the alloys also exhibited excellent corrosion resistance in Ringer's solution. Overall, the results indicate that the LENS-deposited TNZT alloy could be a promising candidate for biomedical applications.
引用
收藏
页码：1819 / 1827
页数：9
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