Microstructure and High Temperature Oxidation Resistance of FeNiCrTiB/Cr3C2 Coating Deposited by High Velocity Arc Spray
摘 要
采用高速电弧喷涂技术制备FeNiCrTiB/Cr3C2耐高温金属陶瓷复合涂层。利用光学显微镜、扫描电镜、X射线衍射等手段研究涂层的组织结构以及氧化产物, 并与传统锅炉用钢20G钢对比, 分析涂层的抗氧化机理。结果表明: FeNiCrTiB/Cr3C2涂层为典型的层状结构, 且涂层上分布着少量的孔隙和氧化物; 650 ℃氧化200 h后涂层的氧化质量增量为1.58 mg·cm-2, 远小于20G钢的氧化质量增量(24.85 mg·cm-2); 涂层在氧化过程中生成致密的具有保护性的铁、铬的复合氧化膜, 阻塞氧的扩散通道, 阻止进一步氧化, 从而提高涂层的抗高温氧化性能。
Abstract
The metal-ceramic composite coating FeNiCrTiB/Cr3C2 with high temperature corrosion resistance was prepared by high velocity arc spray (HVAS). The optical microscopy, scanning electron microscopy and X-ray diffraction were used to analyze microstructure and oxidation products of the coating. The high temperature oxidation resistance of FeNiCrTiB/Cr3C2 coating was compared with that of bare 20G steel. The high temperature oxidation mechanism of the coating was investigated. The results showed that microstructure of HVAS FeNiCrTiB/Cr3C2 coating was the typical layer structure. Some pores and oxides were distributed on coating. After oxidation in 650 ℃ for 200 h, the weight gain of the FeNiCrTiB/Cr3C2 coating was 1.58 mg·cm-2, which was much less than that of the bare 20G steel (24.85 mg·cm-2). The formation of the compact Fe, Cr composite oxides was responsible for the protection of the coating from further oxidation.
中图分类号 TG174.44
所属栏目 试验与研究
基金项目
收稿日期 2014/1/7
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备注钱玲(1989-), 女, 硕士。
引用该论文: QIAN Ling,WU Yu-ping,SHEN Wei,GUO Ji,GUO Wen-min,CHEN Li-yan. Microstructure and High Temperature Oxidation Resistance of FeNiCrTiB/Cr3C2 Coating Deposited by High Velocity Arc Spray[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2014, 50(5): 334~337
钱玲,吴玉萍,沈伟,郭稷,郭文敏,陈丽艳. 高速电弧喷涂FeNiCrTiB/Cr3C2涂层的组织结构及其高温氧化行为[J]. 理化检验-物理分册, 2014, 50(5): 334~337
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参考文献
【1】朱子新,徐滨士,徐向阳,等.电站锅炉管道高温冲蚀磨损和涂层防护技术[J].中国电力,2001,34(12): 16-18.
【2】VENUGOPAL K, AGRAWAL M. Evaluation of arc sprayed coatings for erosion protection of tubes in atmospheric fluidised bed combustion (AFBC) boilers[J].Wear,2008,264(1): 139-145.
【3】SOLOMON N. Erosion-resistant coatings for fluidized bed boilers[J].Materials Performance,1998,37(2): 38-43.
【4】WANG B. Erosion-corrosion of thermal sprayed coatings in FBC boilers[J].Wear,1996,199(1): 24-32.
【5】高文文,吴玉萍,杜海清,等.纳米Al2O3封孔对电弧喷涂3Cr13涂层耐腐蚀性能的影响[J].理化检验-物理分册,2013,49(12): 785-789.
【6】罗来马,罗娟,刘少光,等.高速电弧喷涂 FeMnCrAl/Cr3C2涂层的组织及抗高温氧化性能[J].材料热处理学报,2010,12(31): 139-142.
【7】罗来马,俞佳,刘少光,等.高速电弧喷涂 FeMnCr/Cr3C2涂层的组织与性能[J].材料热处理学报,2009,30(3): 174-177.
【8】王倩,吴玉萍,李改叶,等.超音速火焰喷涂 Cr3C2/NiCr涂层抗加沙空蚀性分析[J].焊接学报,2013,34(2): 35-39.
【9】ESPALLARGAS N, BERGET J, GUILEMANY J, et al. Cr3C2-NiCr and WC-Ni thermal spray coatings as alternatives to hard chromium for erosion-corrosion resistance[J].Surface and Coatings Technology, 2008,202(8): 1405-1417.
【10】郭文敏,吴玉萍,李改叶,等.低碳钢表面电弧喷涂层FeNiCr/Cr3C2与NiCrTi的热腐蚀性能[J].材料热处理学报,2011,32(11): 128-134.
【11】KAMAL S, JAYAGANTHAN R, PRAKASH S, et al. Hot corrosion behavior of detonation gun sprayed Cr3C2-NiCr coatings on Ni and Fe-based superalloys in Na2SO4-60%V2O5 environment at 900 ℃[J].Journal of alloys and compounds,2008,463(1/2): 358-372.
【12】孙秋霞.材料腐蚀与防护[M].北京: 冶金工业出版社,2009.
【2】VENUGOPAL K, AGRAWAL M. Evaluation of arc sprayed coatings for erosion protection of tubes in atmospheric fluidised bed combustion (AFBC) boilers[J].Wear,2008,264(1): 139-145.
【3】SOLOMON N. Erosion-resistant coatings for fluidized bed boilers[J].Materials Performance,1998,37(2): 38-43.
【4】WANG B. Erosion-corrosion of thermal sprayed coatings in FBC boilers[J].Wear,1996,199(1): 24-32.
【5】高文文,吴玉萍,杜海清,等.纳米Al2O3封孔对电弧喷涂3Cr13涂层耐腐蚀性能的影响[J].理化检验-物理分册,2013,49(12): 785-789.
【6】罗来马,罗娟,刘少光,等.高速电弧喷涂 FeMnCrAl/Cr3C2涂层的组织及抗高温氧化性能[J].材料热处理学报,2010,12(31): 139-142.
【7】罗来马,俞佳,刘少光,等.高速电弧喷涂 FeMnCr/Cr3C2涂层的组织与性能[J].材料热处理学报,2009,30(3): 174-177.
【8】王倩,吴玉萍,李改叶,等.超音速火焰喷涂 Cr3C2/NiCr涂层抗加沙空蚀性分析[J].焊接学报,2013,34(2): 35-39.
【9】ESPALLARGAS N, BERGET J, GUILEMANY J, et al. Cr3C2-NiCr and WC-Ni thermal spray coatings as alternatives to hard chromium for erosion-corrosion resistance[J].Surface and Coatings Technology, 2008,202(8): 1405-1417.
【10】郭文敏,吴玉萍,李改叶,等.低碳钢表面电弧喷涂层FeNiCr/Cr3C2与NiCrTi的热腐蚀性能[J].材料热处理学报,2011,32(11): 128-134.
【11】KAMAL S, JAYAGANTHAN R, PRAKASH S, et al. Hot corrosion behavior of detonation gun sprayed Cr3C2-NiCr coatings on Ni and Fe-based superalloys in Na2SO4-60%V2O5 environment at 900 ℃[J].Journal of alloys and compounds,2008,463(1/2): 358-372.
【12】孙秋霞.材料腐蚀与防护[M].北京: 冶金工业出版社,2009.
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