Microstructure tailoring to enhance strength and ductility in Ti-13Nb-13Zr for biomedical applications
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- 作者：Taekyung Lee ; Yoon-Uk Heo ; Chong Soo Lee
- 关键词：Titanium alloys ; Severe plastic deformation (SPD) ; Quenching ; Work hardening ; Transmission electron microscopy (TEM)
- 刊名：Scripta Materialia
- 出版年：2013
- 出版时间：December, 2013
- 年：2013
- 卷：69
- 期：11-12
- 页码：785-788
- 全文大小：589 K
文摘
New microstructures were developed by strong grain refinement and phase control in a Ti-13Nb-13Zr alloy. Ultrafine-grained multiphase alloys were fabricated using a multipass caliber-rolling process at the (¦Á + ¦Â) region. Transmission electron microscopy analysis revealed that different types of martensitic transformations occurred depending on the cooling rate. The developed alloys exhibited improved strength and ductility compared with a conventional material, and this enhancement of properties is discussed in terms of microstructural effects on the strain-hardening behavior.