材料研究学报  2011, Vol. 25 Issue (2): 129-134

研究论文 本期目录 | 过刊浏览 |

PS45/CuAl8伪合金复合涂层高温循环氧化行为

吴姚莎, 邱万奇, 余红雅, 钟喜春, 刘仲武, 曾德长, 李尚周

华南理工大学材料科学与工程学院 广州 510640

High Temperature Cycle Oxidation Behavior of PS45/CuAl8 Pseudo-Alloy Composite Coating

WU Yaosha, QIU Wanqi, YU Hongya, ZHONG Xichun, LIU Zhongwu, ZENG Dechang, LI Shangzhou

School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640

吴姚莎 邱万奇 余红雅 钟喜春 刘仲武 曾德长 李尚周. PS45/CuAl8伪合金复合涂层高温循环氧化行为[J]. 材料研究学报, 2011, 25(2): 129-134.
. High Temperature Cycle Oxidation Behavior of PS45/CuAl8 Pseudo-Alloy Composite Coating[J]. Chin J Mater Res, 2011, 25(2): 129-134.

摘要 参考文献 相关文章 Metrics 全文: PDF(1043 KB)   摘要: 采用超音速活性电弧喷涂技术在Q235钢基体表面制备PS45/CuAl8伪合金复合涂层, 将该涂层在600℃和800℃进行循环氧化, 采用XRD、SEM和精密天平等手段对涂层的显微结构进行表征, 研究了涂层的循环氧化性能。结果表明: PS45/CuAl8伪合金复合涂层主要由Al2O3、Cr2O3、α--Cu和γ--Ni固溶体组成, 组织致密, 颗粒成扁平状且扁平化程度高、分布均匀。经高温循环氧化后在涂层表面形成了一层致密的Al2O3+Cr2O3+Ni(Al,Cr)2O4薄膜, 避免了Al2O3薄膜的剥落, 从而降低了涂层氧化速率, 提高了基体的抗高温循环氧化性能。 关键词 ： 材料表面与界面,  PS45/CuAl8伪合金复合涂层,  超音速活性电弧喷涂,  高温循环氧化     Abstract：A pseudo-alloy coating PS45/CuAl8 was prepared on Q235 steel by activated combustion high-velocity electirc arc spraying(HVAA). The cycle oxidation experiments at 600oC and 800oC in air for these coatings were accomplished, the microstructure, crystal structure and oxidation resistance properties were haracterized and analyzed by means of X-ray diffraction, scanning electron microscopy (SEM) with energy spectrometer (EDS) and the cycle oxidation behaviors were investigated. The results show that the pseudo-alloy coatings PS45/CuAl8 compose of Al2O3, Cr2 O3, α–Cu and γ–Ni solid solution, and possess dense and typical lamellar structure which were homogeneous. After high temperature oxidation, the coating was covered by dense, continuous and complete oxide films of Cr2O3, Al2O3 and Ni(Cr,Al)2O4, which can avoid spalling of Al2O3 film and reduce the oxidation rate of the composite coating, play an important role for protecting the substrate. Key words： surface and interface in the materials    PS45/CuAl8 pseudo-alloy composite coating    activated combustion high-velocity electric arc spraying    high temperature oxidation 收稿日期: 2010-08-30      ZTFLH:  TG146.2   基金资助: 广东省科学技术重点基金2009A090100045、2010A090200077、00567440136976033和中山市科学基金20103A262资助项目。 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 吴姚莎 44.8K 链接本文: https://www.cjmr.org/CN/      或      https://www.cjmr.org/CN/Y2011/V25/I2/129 1 DONG Chongli, LI Shangzhou, LIN Jiedong, NIE Ming, LIU Hongwen, Active function of Cr2C3 coating properties as HVAF-ARC sprayed, Electromechanical Technology, 34(3), 26(2005) (董重里, 李尚周, 林介东, 聂铭, 刘红文, HVAF--ARC喷涂Cr2C3活性功能涂层性能的研究, 机电工程技术,  34(3), 26(2005)) 2 XIANG J H, Gesmundo F, NIU Y, The oxidation of two ternary Ni–Cu–10at.% Al alloys in 1 atm of pure O2 at 800–900oC, Corrosion Science, 46, 2025(2004) 3 Gabriel Plascencia, Torstein A Utigard, High temperature oxidation mechanism of dilute copper aluminium alloys, Corrosion Science, 47, 1149(2005) 4 ZHANG Zhongli, LI Deyuan, WANG Shuiyong, High temperature performance of ARC-Sprayed aluminium bronze coating for steel, Trans. 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