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of the coatings. The results show that the high temperature oxidation and sulfuration resistance of samples with aluminide coatings are improved remarkably. Key words: iron aluminide coating; Q235 steel...铝化物涂层使Q235的抗硫化性能得到了很好的改善. 图2 Q235钢表面沉积铝化物涂层在600 ℃氧化200 h的氧化动力学曲线 Fig.2 Oxidation kinetics curves of samples deposited with aluminide coating at 600 ℃ for 200 h under different voltages......
IN738合金上铂铝涂层的高温氧化 王文1,刘刚1,牛焱1,吴维1 (1.中国科学院金属研究所金属腐蚀与防护国家重点实验室沈阳 110016) 摘要:研究了IN738镍基高温合金的铂改性渗铝涂层在1100℃空气中的氧化行为.铂的存在,通过阻止合金元素穿过Al2O3膜向外扩散,改善AlO3膜与基体的结合力,抑制γ′-Ni3Al相的形成,推迟涂层的高温退化,同时讨论铂的作用机制. 关键词:铂铝化物涂层高温氧化; platinum; aluminide coating; oxidationCu- Al; [全文内容正在添加中] ......
′-Ni_3Al相呈弥散分布生长,从而可以形成Al元素的"网"状快速扩散通道. 关键词:铂; 铝化物涂层; 高温氧化; 内应力; platinum; aluminide coating; high-temperature oxidation; residual stress; [全文内容正在添加中] ......
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Oxidation and hot corrosion behavior ofTi2AlNb-based alloy with and without enamel coating at 800 ℃ ZHENG De-you(郑德有), XIONG Yu-ming(熊玉明), ZHU Sheng-long(朱圣龙), LI Ming-sheng(李明升), WANG Fu-hui(王福会...: The oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 ℃ was investigated. The results indicated that Ti-22Al-25Nb alloy exhibited poor oxidation resistance......
TiAlCrAg coating based on Ti-Al-Nb alloy was experimentally studied at 900 ℃[4]. By using arc surface alloying technology and molten salt method, the prepared aluminide and NbSi2 coating on niobium... Science and Technology, 2004, 20(6): 724-727. [5] MATSUURA K, KOYANAGI T, OHMI T. Aluminide coating on niobium by arc surface alloying[J]. Materials Transactions, 2003, 44(5): 861-865. [6] Suzuki R O......
铂铝涂层高温氧化的影响因素研究 张德丰1,宋鹏1,陆建生1,吕建国1 (1.昆明理工大学,云南,昆明,650093;2.于利希研究中心,德国,于利希52425) 摘要:研究比较沉积热障涂层和无热障涂层的镍基高温合金铂改性铝化物涂层在900,1000和1100 ℃空气中高温氧化生成的氧化铝层表面形态和断面结构.发现低铂含量涂层氧化初期热生长层(TGO)表面有放射状裂纹形成和长大,造成氧化铝的局部脱落,并在TGO与铂铝涂层界面形成空洞.涂层900 ℃循环氧化300 h后TGO内部均形成空洞.而在1100 ℃氧化时,TBC陶瓷层的存在改变了两种铂铝涂层TGO的内应力变化趋势,升高温度使TGO厚度迅速增大,涂层寿命迅速下降. 关键词:铂; 铝化物涂层; 高温氧化; 热生长层; platinum; aluminide coating; high-temperature oxidation......
Nano-Composite Superfine Nickel Powder Double Absorbent Coating Designing () 摘要:We adopt a definite procedure to compound traditional absorbing material-superfine powder nickel and nano -SiC... material, but each component of the composite material must have matched electromagnetic parameter with another. For matching double-coating structure, it ought to modulate the correlativity of each......
Interface microstructure and diffusion of vacuum annealed ceramic coating on superalloy GH202 GU Yi(古 一), XIA Chang-qing(夏长清), QIU Guan-zhou(邱冠周), WANG Zhi-fa(王志法) School of Materials... of superalloy GH202, the ultrafine-grain ceramic coating containing nano-size nickel particles was obtained by flow coat method on the surface of GH202. The interface microstructure between ceramic......
