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testing were applied to the studies of the oxidation kinetics, phase composition, micro morphology, and porous structure parameters of porous Ti3SiC2 before and after oxidation. The results showed... just composed of micro-sized grains. If using the oxidation kinetic trend as a gauge to characterize the severity of oxidation, the isothermal oxidation at ~600 °C was less deleterious than that in TG......
Synthesis of tetragonal BaTiO3 film on Ti substrate by micro-arc oxidation PENG Ji-hua(彭继华), LI Wen-fang(李文芳), HAN Bing(韩 冰), HUANG Fang-liang(黄芳亮), DU Jun(杜 军) School of Materials Science... by alternative current(AC) and direct current(DC) micro arc oxidation (MAO). Microstructures of films were investigated by means of SEM, XRD and TEM. The results show that the amorphous phase and primitive cubic......
Effects of additives on corrosion and wear resisitance of micro-arc oxidation coatings on TiAl alloy WU Xiang-qing(吴向清), XIE Fa-qin(谢发勤), HU Zong-chun(胡宗纯), WANG Li(王 立) School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China Received 15 July 2009; accepted 11 January 2010 Abstract: Ceramic coating was deposited on TiAl alloy substrate by micro-arc oxidation......
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NiCoCrAlYSiB+AlSiY梯度涂层恒温氧化行为王维新1,2,姜肃猛1,卫广智2,马军2,宫骏2,孙超2(1.辽宁省沈阳市科学院金属研究所金属腐蚀与防护国家重点实验室2.贵州省贵阳市贵州大学材料与冶金学院)摘 要:采用电弧离子镀技术在镍基单晶高温合金基体上制备了NiCoCrAlYSiB涂层和(NiCoCrAlYSiB+AlSiY)梯度涂层,对比研究了2种涂层退火态的组织结构和在1000,1100和1150℃下的恒温氧化行为.结果表明:退火处理后,NiCoCrAlYSiB涂层是由γ/γ相和弥散其中的点状β......
Effect of Nb on oxidation behavior of NiTiNb alloys XU Jian(徐 舰), ZHAO Xin-qing(赵新青), GONG Sheng-kai(宫声凯) School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China Received 20 April 2006; accepted 30 June 2006 Abstract: The oxidation behavior of NiTi and NiTiNb alloys containing different amounts of Nb (7%, 9%, mole fraction) were......
Physics characteristic of coupling arc of twin-tungsten TIG welding ZHANG Guang-jun(张广军), LENG Xue-song(冷雪松), WU Lin(吴 林) State Key Laboratory of Advanced Welding Production Technology, Harbin... to master this process, the arc physics characteristic was studied. The twin-tungsten coupling arc shape was observed by using CCD camera, and the arc pressure was measured. The results show......
Trans. Nonferrous Met. Soc. China 27(2017) 102-109 Effect of La on arc erosion behaviors and oxidation resistance of Cu alloys Hai-yan LI1, Xuan ZHOU2, Xue-qiong LU1, Ya-ping WANG1,3 1. Key... 18 October 2016 Abstract: Cu with and without La addition was prepared and the effect of a trace amount of La on the arc erosion behaviors and oxidation resistance of Cu alloys was investigated......
, et al. Structure and resistance to oxidation of an Al-Si diffusion coating deposited by arc-PVD on a TiAlCrNb alloy[J]. Surf Coat Technol, 2003, 165: 273-280. [12]Nicholls J R. Advances in coating...Article ID: 1003-6326(2005)02-0423-04 Oxidation protection of NiCoCrAlY coatings on γ-TiAl WANG Qi-min(王启民), GUO Ming-hu(郭明虎), KE Pei-ling(柯培玲), GONG Jun(宫 骏), SUN Chao(孙 超), WEN Li-shi......
J. Cent. South Univ. (2021) 28: 418-428 DOI: https://doi.org/10.1007/s11771-021-4612-2 Analysis of axial force of double circular arc helical gear hydraulic pump and design of its balancing device... produced in the working process of double arc helical gear hydraulic pump, the theory of differential equation of curve and curved surface was utilized so that the calculation formula of axial force......