I am Guang, a PhD candidate at RMIT University. I used to work as a rare metals engineer in the Northwest Institute for Nonferrous Metal Research (NIN) in China, and received my first bachelor’s degree of Material Science and Engineering from Northwestern Polytechnical University (NPU).
In 2017, I started my PhD research into novel, fast manufacturing approaches for depositing unique, biocompatible titanium-tantalum (Ti-Ta) structures. These unique structures were made by a solid-state processing technique – ‘cold spray’ – and offer a promising solution to manufacturing implantable Ti-Ta structures in a fast and cost-effective way. I am an energetic and creative researcher, hoping to benefit our human society a little bit through my research.
Topic: Novel Fast Manufacturing Approaches for Biocompatible Structures
Titanium (Ti) and its alloys are widely used as load-bearing implants. However, slow but continuing release of toxic metal ions and wear debris may incur undesirable side effects. Tantalum (Ta), an emerging metallic biomaterial, exhibits high corrosion and wear resistance in vivo, but its extremely high melting temperature (3017 ºC) is a critical technical challenge when manufacturing fully dense structures through conventional processing approaches. As such, new and feasible manufacturing techniques for Ta-based implant materials are greatly desired. Cold spray, a new additive manufacturing technology, provides a promising solution to depositing metallic coatings on Ti implants yielding a variety of benefits, including low-temperature and solid-state processing with no phase transitions in the Ti-Ta mixture. Experimental results manifest unique, phase change-free microstructures for cold sprayed Ti-Ta structures that improve the in vitro biocompatibility of the Ti substrate. The findings from this work demonstrate that cold sprayed Ti-Ta structures hold great practical promise for orthopaedic implant devices.
A commercial impact system by Impact Innovations.
SEM image of a cold sprayed titanium particle bonded to a steel surface.
[1-11]
[1] Z. Guang, M. Xiaonan, Z. Yongqing, H. Chaowen, L. Shujin, H. Zhiyu, Y. Fei, Z. Pingxiang, Microstructures and Mechanical Properties of Hot Isostatic Pressed Parts of Ti-6Al-4VELI Alloy Spherical Powders with Three Different Diameter Distributions, Rare Metal Materials and Engineering 46(11) (2017) 3197-3203.
[2] 曾光, 白保良, 张鹏, 梁书锦, 韩志宇, 陈小林, 张平祥, 球形钛粉制备技术的研究进展, 钛工业进展 32(1) (2015) 7-11.
[3] 曾光, 韩志宇, 梁书锦, 张鹏, 陈小林, 张平祥, 金属零件 3D 打印技术的应用研究, 中国材料进展 33(6) (2014) 376-382.
[4] 曾光, 朱梅生, 王瑞欣, 谢翀博, 纯钛挤压管坯内表面缺陷分析, 真空与低温 (2) (2013) 113-116.
[5] 曾光, 李子全, 周衡志, TiNi/ZnO 复合智能薄膜的制备及性能研究, 稀有金属材料与工程 39(8) (2010) 1447-1450.
[6] 曾光, 李子全, 周衡志, 董亚军, 衬底温度对射频磁控溅射制备 Ti-Ni 合金薄膜的影响, 稀有金属材料与工程 37(A04) (2008) 523-527.
[7] 白保良, 曾光, 戚运莲, 洪权, 朱梅生, Ti-600 合金蠕变性能及硅对其蠕变性能的影响, 钛工业进展 31(4) (2014) 24-27.
[8] 韩志字, 曾光, 梁书锦, 陈小林, 张鹏, 张平祥, 镍基高温合金粉末制备技术的发展现状, 中国材料进展 33(12) (2014) 748-755.
[9] 周衡志, 李子全, 曾光, 胡孝昀, 陈建康, 纳米 CeO2/Zn-4.5 Al-RE-Mg-Ti 的复合搅拌制备工艺研究, 稀有金属材料与工程 39(3) (2010) 534-537.
[10] 徐伟, 韩志宇, 梁书锦, 曾光, 张鹏, 陈小林, 俄罗斯粉末高温合金生产工艺, 粉末冶金技术 33(6) (2015) 455-459.
[11] 张英明, 段启辉, 韩明臣, 倪沛彤, 郭金明, 曾光, 朱梅生, 董亚军, 热处理对 TC18 钛合金丝显微组织与力学性能的影响, 钛工业进展 28(2) (2011) 23-25.
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