全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
材料工程  2013 

冷喷涂WC-Co涂层的组织结构和性能研究

DOI: 10.3969/j.issn.1001-4381.2013.10.005, PP. 29-35

Keywords: 冷喷涂,WC-Co涂层,黏结相,组织结构,性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

以微米WC-12Co、纳米WC-17Co和WC-23Co三种团聚烧结粉末为原料,进行冷喷涂沉积涂层实验,通过扫描电镜、X射线衍射仪分别分析了涂层的组织结构和相结构,运用压痕法测定了涂层的显微硬度、弹性模量和断裂韧性,并通过销-盘磨损实验测定了涂层的耐磨损性能。实验表明,三种粉末所沉积的WC-Co涂层均具有致密的组织结构,涂层保持与原始粉末相同的相结构,黏结相Co由于强烈塑性变形发生了同素异构转变,涂层组织无传统层状结构,WC硬质相发生了局部流动和再分布。对于纳米WC-Co涂层,随着黏结相含量增加,涂层硬度和弹性模量降低、断裂韧性增加,相对于316L不锈钢,冷喷涂WC-Co涂层表现出了优异的耐磨损性能,涂层磨损失效机理主要为磨粒对涂层的切削作用。

References

[1]  韩玮, 孟宪明, 赵杰, 等. 冷喷涂304不锈钢涂层的弯曲力学行为研究[J]. 材料工程, 2011, (4): 49-53.HAN Wei, MENG Xian-ming, ZHAO Jie, et al. Study of bending behavior of 304 stainless steel coating by cold gas dynamic spraying[J]. Journal of Materials Engineering, 2011, (4): 49-53.
[2]  高培虎, 杨冠军, 李毅功, 等. 双尺度结构WC-Co涂层的冷喷涂制备[J]. 材料研究与应用, 2009, 3(1): 44-48.GAO Pei-hu, YANG Guan-jun, LI Yi-gong, et al. Preparation of bimodal WC-12Co coatings by cold spraying[J]. Materials Research and Application, 2009, 3(1): 44-48.
[3]  KIM H J, LEE C H, HWANG S Y. Superhard nano WC-12%Co coating by cold spray deposition[J]. Material Science and Engineer A, 2005, 391(1-2):243-248.
[4]  LI C J, YANG G J, GAO P H, et al. Characterization of nanostructured WC-Co deposited by cold spraying[J]. Journal of Thermal Spray Technology, 2007, 16(5-6): 1011-1020.
[5]  WANG Y Y, LI C J, MA J, et al. Effect of flame conditions on the abrasive wear performance of HVOF sprayed nanostructured WC-12Co coatings[J]. Transactions of Nonferrous Metals Society of China, 2004, 14(S2): 72-76.
[6]  崔永静, 王长亮, 汤智慧, 等. 超音速火焰喷涂WC-17Co涂层微观结构与性能研究[J]. 材料工程, 2011, (11):85-88, 96.CUI Yong-jing, WANG Chang-liang, TANG Zhi-hui, et al. Microstructure and performance of WC-17Co coatings fabricated by high velocity oxy-fuel spraying[J]. Journal of Materials Engineering, 2011, (11):85-88, 96.
[7]  CHIVAVIBUL P, WATANABE M, KURODA S, et al. Effects of carbide size and Co content on the microstructure and mechanical properties of HVOF-sprayed WC-Co coatings[J]. Surface & Coatings Technology, 2007, 202(3): 509-521.
[8]  CHO T Y, YOON J H, KIM K S, et al. A study on HVOF coatings of micron and nano WC-Co powders[J]. Surface & Coatings Technology, 2008, 202(22-23): 5556-5559.
[9]  卜恒勇, 卢晨. 冷喷涂技术的研究现状及进展[J]. 材料工程, 2010, (1):94-98.BU Heng-yong, LU Chen. Research and development of cold spray technology[J]. Journal of Materials Engineering, 2010, (1):94-98.
[10]  李文亚, 李长久, 王豫跃, 等. 冷喷涂Cu粒子参量对其碰撞变形行为的影响[J]. 金属学报, 2005, 41(3): 282-286.LI Wen-ya, LI Chang-jiu, WANG Yu-yue, et al. Effect of parameters of cold sprayed Cu particles on its impacting behavior[J].Acta Metallurgica Sinica, 2005, 41(3): 282-286.
[11]  章华兵, 张俊宝, 梁永立, 等. 冷喷涂Ni涂层的微观组织[J]. 中国有色金属学报, 2008, 18(8): 1421-1425.ZHANG Hua-bing, ZHANG Jun-bao, LIANG Yong-li, et al. Microstructures of cold-sprayed Ni coating[J]. The Chinese Journal of Nonferrous Metals, 2008, 18(8): 1421-1425.
[12]  LIMA N S, DAS S, PARK S Y, et al. Fabrication and microstructural characterization of nano-structured WC/Co coatings[J]. Surface & Coatings Technology 2010, 205(2): 430-435.
[13]  ANG A S M, BERNDT C C, CHEANG P. Deposition effects of WC particle size on cold sprayed WC-Co coatings[J]. Surface & Coatings Technology, 2011, 205(10): 3260-3267.
[14]  王晓放, 李刚, 殷硕, 等. 粒子非垂直入射对冷喷涂涂层形成的影响分析[J]. 材料科学与工艺, 2008, 16(2):149-152. WANG Xiao-fang, LI Gang, YIN Shuo, et al. Effect of non-vertical incidence angles of particles on bonding performance in cold spraying[J].Material Science and Technology, 2008, 16(2): 149-152.
[15]  周香林, 苏贤涌, 崔华, 等. 颗粒材料特性对冷喷涂撞击行为影响的模拟研究[J]. 金属学报, 2008, 44(11):1286-1291. ZHOU Xiang-lin, SU Xian-yong, CUI Hua, et al. Effect of cold-sprayed particles properties on their impacting behaviors[J].Acta Metallurgica Sinica, 2008, 44(11): 1286-1291.
[16]  MARSHALL D B, NOMA T, EVANS A G. A simple method for determining elastic-modulus-to-hardness ratios using Knoop indentation measurements[J]. Journal of the American Ceramic Society, 1982, 65(10): 175-176.
[17]  NIIHARA K, MORENA R, HASSELMAN D P H. Evaluation of KIC of brittle solids by the indentation method with low crack-to-indent ratios[J]. Journal of Material Science Letter, 1982, 1(1): 13-16.
[18]  SARIN V K, JOHANNESSON T. On the deformation of WC-Co cemented carbides[J]. Metal Science, 1975, 9(10): 472-476.
[19]  刘慕怡, 张玉田, 孙金贵, 等. 硬质合金钴粘结剂中α-Co的定量相分析方法[J]. 物理测试, 1986, (3): 34-36. LIU Mu-yi, ZHANG Yu-tian, SUN Jin-gui, et al. A method of quantitative analysis of α-Co phase of cobalt binder in tungsten carbide[J]. Physics Examination and Testing, 1986, (3): 34-36.
[20]  苟国庆, 陈辉. HVOF喷涂纳米WC-17Co 涂层组织结构及力学行为研究[J]. 材料导报, 2009, 23(1):48-50/56. GOU Guo-qing, CHEN Hui. Research on microstructure and mechanical behavior of nanostructured WC-17Co HVOF coatings[J]. Materials Review, 2009, 23(1):48-50/56.
[21]  JIA K, FISCHER T, GALLOIS B. Microstructure, hardness and toughness of nanostructrued and conventional WC-Co composites[J]. Nanostructure Materials, 1982, 10(5): 875-891.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133