Microstructure and Properties of the AlCuFeCr Coating Magnetron Sputtered on TIMETAL 834
AlCuFeCr quasicrystalline coating was deposited on near-α titanium alloy, TIMETAL 834, by nonreactive magnetron sputtering. Analytical scanning and transmission electron microscopy were used for detailed analyses of coated alloy microstructure as well as their phase and chemical composition. The microstructure of the alloy consisted of the a phase,α small amount of the β phase and precipitates of Zr5Si4. It was found that the as deposited and annealed at 600℃ during 4 hours in vacuum coating has an amorphous-quasicrystalline structure. Additional annealing at 750°C during 2 hours in air produces fully quasicrystalline structure which consisted of decagonal d-AlCuFeCr phase. Directly under the coating an intermediate layer composed of Al6.1Cu1.2Ti2.7 phase was formed. It was established that AlCuFeCr coating increased the hardness of the alloy investigated. The oxidation resistance of TIMETAL 834 alloy was also improved by applying the AlCuFeCr coating. Oxide scale formed on the surfaces of AlCuFeCr quasicrystalline coating after oxidation resistance test performed at 750℃ during 300 hours in air consisted mainly of α-rAl2O3.
Near-α titanium alloy quasicrystalline coating microstructure oxidation resistance
Tomasz Moskalewicz Bogdan Wendler Sfawomir Zimowski Aleksandra Czyrska-Filem-onowicz
AGH University of Science and Technology,Al. A. Mickiewicza 30,30-059 Krakow,Poland Technical University of Lodz,ul. Stefanowskiego 1,90 924 Lodz,Poland
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1941-1945
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）