Microstructures of cold-sprayed titanium before and after heat treatment

A conical-shaped pin of cold sprayed titanium was prepared using a CGT Kinetiks 4000 system. After a synchrotron X-ray micro-CT scan the titanium pin was heat treated at 850 degree C for 4 hours. The second micro-CT scan was performed. Both X-ray CT data were analysed using DCM for their 3D porosity distributions.

采用CGT Kinetiks 4000系统制备了冷喷涂钛（cold sprayed titanium）锥形销钉。对该钛销钉完成同步辐射X射线显微计算机断层扫描（synchrotron X-ray micro-CT）后，将其置于850摄氏度下进行4小时的热处理。随后开展第二次显微CT扫描。利用DCM对两组X射线CT扫描数据进行分析，以获取其三维孔隙分布。