کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1574381 | 1514706 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure characterization and property tailoring of a biomedical Ti-19Nb-1.5Mo-4Zr-8Sn alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructure characterization and property tailoring of a biomedical Ti-19Nb-1.5Mo-4Zr-8Sn alloy Microstructure characterization and property tailoring of a biomedical Ti-19Nb-1.5Mo-4Zr-8Sn alloy](/preview/png/1574381.png)
چکیده انگلیسی
A biomedical β titanium alloy (Ti-19Nb-1.5Mo-4Zr-8Sn) was designed and prepared by vacuum arc self-consumable melting. The ingot was forged and rolled to plates, followed by quenching and ageing. Microstructure evolution and its influence on mechanical properties of the alloy were investigated, using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, tensile and hardness tests. Results show that a two-phase structure featured with a dispersed nano-sized αⲠphase and a supersaturated solid solution β phase (βsss) forms immediately after quenching from β-phase region. The quenched alloy exhibits an extremely low Young's modulus of 39 GPa, with an ultimate tensile strength above 930 MPa and an elongation of 10%, showing good promises for biomedical implant applications. The precipitation sequence during isothermal ageing at different temperatures was determined as, for Tageing=673-723 K, βsss+αâ²âα+αâ³+βâÏ+α+αâ³+βâα+β, and for Tageing=773-873 K, βsss+αâ²âαâ³+α+βâα+β. The tensile strength, elongation, and elastic modulus of the alloy can be tailored easily through controlling the phase transition during ageing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 637, 18 June 2015, Pages 130-138
Journal: Materials Science and Engineering: A - Volume 637, 18 June 2015, Pages 130-138
نویسندگان
Weifeng Wan, Huiqun Liu, Yong Jiang, Danqing Yi, Ruowei Yi, Qi Gao, Dingchun Wang, Qi Yang,