黄开金,黄晚霞,林鑫,王爱华. TA2钛表面激光合金化制备耐1000℃高温氧化Ti5Si3 /Ti3Al复合涂层[J]. 航空制造技术, 2018, 61(23/24): 46-51. HUANG Kaijin, HUANG Wanxia, LIN Xin, WANG Aihua. Laser Alloying for Improvement of Oxidation Resistance at 1000℃ of Ti5Si3/Ti3Al Composite Coating on TA2 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(23/24): 46-51.
HUANG Kaijin, HUANG Wanxia, LIN Xin, et al. Laser Alloying for Improvement of Oxidation Resistance at 1000℃ of Ti5Si3/Ti3Al Composite Coating on TA2 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(23/24).
黄开金,黄晚霞,林鑫,王爱华. TA2钛表面激光合金化制备耐1000℃高温氧化Ti5Si3 /Ti3Al复合涂层[J]. 航空制造技术, 2018, 61(23/24): 46-51. HUANG Kaijin, HUANG Wanxia, LIN Xin, WANG Aihua. Laser Alloying for Improvement of Oxidation Resistance at 1000℃ of Ti5Si3/Ti3Al Composite Coating on TA2 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(23/24): 46-51. DOI: 10.16080/j.issn1671–833x.2018.23/24.046.
HUANG Kaijin, HUANG Wanxia, LIN Xin, et al. Laser Alloying for Improvement of Oxidation Resistance at 1000℃ of Ti5Si3/Ti3Al Composite Coating on TA2 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(23/24). DOI: 10.16080/j.issn1671–833x.2018.23/24.046.
Laser Alloying for Improvement of Oxidation Resistance at 1000℃ of Ti5Si3/Ti3Al Composite Coating on TA2 Titanium Alloy
To improve the high temperature oxidation resistance of titanium and titanium alloys
a Ti5Si3/Ti3Al composite coating with oxidation resistance at 1000℃ was prepared by laser alloying on TA2 titanium alloy with inner layer of silicon powder and outer layer of aluminum powder. XRD
SEM and isothermal oxidation technology were used to study the microstructure and the air isothermal oxidation performance of the coating at 1000℃ for 50h. The results show that the composite coating is mainly composed of primary Ti5Si3 phase and Ti5Si3/Ti3Al eutectic structure; the oxidative weight gain rate of the composite coating is about one twelfth of that of the substrate; the oxidation products of the composite coating are mainly TiO2
Al2O3 and SiO2; the existence of two phases Ti5Si3 and Ti3Al in the composite coating is the main reason for the improvement of its oxidation resistance at 1000℃ .