Xu Y.R.,Wuhan University |
Liu H.D.,Wuhan University |
Chen Y.M.,Wuhan University |
Yousaf M.I.,Wuhan University |
And 8 more authors.
Applied Surface Science | Year: 2015
TiC-DLC coatings were in situ synthesized on Ti target surface in acetylene ambient by cathodic arc evaporation. In this process, TiC-DLC composite phases were formed by chemical reaction between Ti target surface and ionized C ions. Different acetylene (C2H2) flow rate and synthetic time were designed as two independent variables to synthesize two series of coatings to study the effects of different synthetic parameters on structure of the coatings. Surface morphology, composition and structure of the coatings were investigated by SEM, EDS, XRD and Raman spectroscopy, respectively. The result showed that the structure and composition of the coatings on the titanium metal target surface could be controlled by changing the C2H2 flow rate. The uniform TiC-DLC composite phases were observed in the coatings, while both C2H2 flow rate and synthetic time could significantly affect the thickness and bonding state of the coatings. © 2015 Elsevier B.V. All rights reserved.
Feng G.,Aerospace Precision Products Co. |
Shen Q.,Aerospace Precision Products Co. |
Pan W.,Aerospace Precision Products Co.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2012
Influence of solution treatment temperature on microstructure and shear strength of Ti-6Al-4V alloy was investigated. The results show that when solution treated at 920-980°C and aged at 500°C, shear strength of the Ti-6Al-4V alloy increases from 643.5 MPa to 708.75 MPa with the solution temperature increase, while the β phase increases and α phase decreases. When solution treated at 980°C and aged at 500°C, the α phase disappears and net-basket structure appears.