氩气焙烧对不锈钢等离子体液相沉积氧化膜结构和抗高温氧化性能的影响  

Effects of Ar Calcination on the Structure and Anti-High Temperature Oxidation of Ceramic Coating on Stainless Steel Surface by CPLD

作　　者：王云龙[1] 姜兆华[1] 姚忠平[1] 

机构地区：[1]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001

出　　处：《金属热处理》2007年第3期56-58,共3页Heat Treatment of Metals

基　　金：国家自然科学基金项目(50171026);哈尔滨青年科技创新基金项目(2006RFQXG032)

摘　　要：利用阴极等离子体液相沉积技术实现了在不锈钢表面制备氧化铝膜层,研究了氩气焙烧处理对膜层的结构、组成、形貌和抗高温氧化性能的影响。结果表明,阴极等离子体液相沉积膜层主要由α-A l2O3和γ-A l2O3组成,基体Fe元素没有进入膜层,膜层表面粗糙多孔;氩气焙烧处理有利于膜层中γ-A l2O3向α-Al2O3的转化,氩气焙烧处理后膜层表面致密细化,膜层的抗高温氧化性能显著提高。Al2O3 coating was achieved on a stainless steel substrate by cathodic plasma liquid deposition （CPLD） technology. The effects of the Ar calcination on the structure, phase composition, morphology and anti-high temperature oxidation property of the ceramic coatings were studied. The results show that the ceramic coating by CPLD is mainly composed of γ-Al2O3 and α- Al2O3, Fe in the substrate does not come into coating. Coating surface is coarse and porous, and Ar calcination is helpful to the transformation of γ-Al2O3 to α-Al2O3. After calcintion, coating surface become more compact and thinner, and property of the anti-high temperature oxidation of the coatings is improved remarkably.

关 键 词：阴极等离子体液相沉积 不锈钢 陶瓷膜层 抗高温氧化 氩气焙烧 

分 类 号：TG156.99[金属学及工艺—热处理]