ZG06Cr13Ni4Mo不锈钢超音速火焰喷涂WC-10Co-4Cr涂层的抗磨蚀性能
Anti-abrasion Performance of WC-10Co-4Cr Coatings Fabricated by High Velocity Oxy-Fuel Thermal Spray on ZG06Cr13Ni4Mo Steel
摘 要
采用超音速火焰（HVOF）热喷涂工艺，在ZG06Cr13Ni4Mo不锈钢上制备了纳米WC-10Co-4Cr涂层。利用压痕法和灰度法分别测试了涂层的显微硬度和孔隙率，并利用X射线衍射仪（XRD）、扫描电子显微镜（SEM）、电子万能试验机和磨蚀试验机分别对涂层的相结构、表面形貌、结合强度和抗磨蚀性能进行了分析和测试。结果表明,获得的WC-10Co-4Cr涂层的平均显微硬度和结合强度高，分别达到1 435HV0.2和70.4 MPa，组织结构致密。相对于ZG06Cr13Ni54Mo不锈钢，纳米WC-10Co-4Cr涂层具有优异的抗磨蚀性能，其抗磨蚀性能是ZG06Cr13Ni54Mo不锈钢的10倍以上。
涂层
WC-10Co-4Cr
磨蚀
HVOF spray
coating
WC-10Co-4Cr
abrasion
Abstract
Nano WC-10Co-4Cr coating was deposited on ZG06Cr13Ni4Mo stainless steel substrate using HVOF (high velocity oxy-fuel) spraying system. The properties of bond strength,micro hardness,porosity and abrasive wear of the coating were investigated. The phases of the coating were analyzed by XRD. The microstructure and surface morphology were analyzed by SEM. The results indicated that the WC-10Co-4Cr coating exhibited high bond strength,micro-hardness and compact structure,the average micro-hardness reached 1435HV0.2 and the bond strength was more than 70 MPa. Compared with the ZG06Cr13Ni4Mo stainless steel,WC-10Co-4Cr coating exhibited excellent anti-abrasion property,the anti-abrasion property of the coating was more than 10 times than the ZG06Cr13Ni4Mo stainless steel.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201509013
所属栏目 试验研究
基金项目 杭州西湖区社会发展科技项目（2012XSF01）;国家“948”项目（201218）;浙江省公益性应用技术研究项目（2013C31044）;杭州市科技发展计划项目（20120433B35）
收稿日期 2014/10/5
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备注毛鹏展（1985-）,工程师,硕士,从事表面强化及纳米技术防护研究工作。
引用该论文: MAO Peng-zhan,CHEN Xiao-ming,ZHOU Xia-liang,MA Hong-hai. Anti-abrasion Performance of WC-10Co-4Cr Coatings Fabricated by High Velocity Oxy-Fuel Thermal Spray on ZG06Cr13Ni4Mo Steel[J]. Corrosion & Protection, 2015, 36(9): 856
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【4】郭鹏程,朱国俊. 水平轴海流能水轮机的多目标优化设计[J]. 排灌机械工程学报,2013(9):778-782.
【5】杨震晓,刘敏. 热喷涂基体表面前处理技术的研究进展[J]. 中国表面工程,2012(2):25-31.
【6】马光,王国刚,孙冬柏,等. 两种AC-HVAF喷涂耐蚀性研究[J]. 材料工程,2007(8):73-76.
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【9】QIAO Q Y,TETSUYA S,AKIRA O. Effect of carbide grain size on microstructure and sliding wear behavior of HVOF-sprayed WC-12Co coatings[J]. Wear,2003(254):23-34.
【10】饶琼,周相林,张济山,等. 超音速喷涂技术及应用[J]. 热加工工艺,2004(10):49-52.
【11】VERDON C,KARIMI A,MARTIN J L. A study of high velocity oxy-fuel thermally sprayed tungsten carbide based coatings. Part 1:Micro-structures[J]. Materials Science and Engineering,1998(246):11-24.
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【13】WANG Q,CHEN Z H,DING Z X. Performance of abrasive wear of WC-10Co-4Cr coatings sprayed by HVAF[J]. Tribology International,2009,42:1046-1051.
【14】CH IVAVIBUL P,WATA NABE M,KURODA S,et al. Evaluation of HVOF-sprayed WC-Co coatings for wood machining[J]. Surface and Coatings Technology,2008,202 (21):5127-5135.
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