反应等离子喷涂TiCN-Mo涂层的组织与性能
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摘要
利用反应等离子喷涂技术在钢基体上沉积了3种不同Mo含量的TiCN-Mo金属基陶瓷涂层。通过XRD、SEM及EDS对涂层显微结构进行分析,通过显微硬度计测量涂层的硬度和压痕韧性,并对显微硬度进行Weibull分布统计。结果表明:涂层由TiC_(0.7)N_(0.3),TiN,金属Mo相,少量Ti_2O及钼的氧化物组成;Mo以白色条带状均匀分布在TiCN周围,交替叠加,形成紧密的显微结构;三种涂层显微硬度均服从Weibull分布,具有一定分散性;与单一TiCN涂层相比,当Mo质量分数为10%时,制备的涂层显微硬度具有较小的分散性,结构致密,具有较高的压痕韧性和强度。
Three types of TiCN-Mo coatings with different Mo contents were deposited on steel substrate surface by reactive plasma spraying. The phase composition and microstructures of as-sprayed coatings were investigated by XRD, SEM and EDS. A Vickers microhardness test was used to measure the microhardness and indentation fractures of the coatings. In addition, a statistics method of Weibull distribution was used to examine the microhardness scattering. The results show that all coatings consist of TiC_(0.7)N_(0.3), TiN, Mo, minor Ti_2O and molybdenum oxides. Metal Mo in white color is evenly distributed around TiCN to form a dense microstructure, which presents an alternately stacked characteristic. The Weibull distribution of the microhardness of three coatings is dominated by apparent scattering. Compared to the monolithic TiCN coatings, the as-sprayed coating with 10% Mo displays a relatively low scattering characteristic of Vickers microhardness and a dense microstructure as well as high indention toughness and strength.
Three types of TiCN-Mo coatings with different Mo contents were deposited on steel substrate surface by reactive plasma spraying. The phase composition and microstructures of as-sprayed coatings were investigated by XRD, SEM and EDS. A Vickers microhardness test was used to measure the microhardness and indentation fractures of the coatings. In addition, a statistics method of Weibull distribution was used to examine the microhardness scattering. The results show that all coatings consist of TiC_(0.7)N_(0.3), TiN, Mo, minor Ti_2O and molybdenum oxides. Metal Mo in white color is evenly distributed around TiCN to form a dense microstructure, which presents an alternately stacked characteristic. The Weibull distribution of the microhardness of three coatings is dominated by apparent scattering. Compared to the monolithic TiCN coatings, the as-sprayed coating with 10% Mo displays a relatively low scattering characteristic of Vickers microhardness and a dense microstructure as well as high indention toughness and strength.
引文
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[2]邓世均.高性能陶瓷涂层[M].北京:化学工业出版社,2003:63-75.DENG Shijun.High Performance of Ceramic Coatings[M].Beijing:Chemical Industry Press,2003:63-75.
[3]HOU Qingyu.Microstructure and wear resistance of steel matrix composite coating reinforced by multiple ceramic particulates using SHS reaction of Al-Ti O2-B2O3 system during plasma transferred arc overlay welding[J].Surface&Coatings Technology,2013,226(5):113-122.
[4]杜三明,靳俊杰,肖宏滨,等.纳米Al2O3等离子喷涂涂层的制备及性能分析[J].表面技术,2014,44(6):1-6.DU Sanming,JIN Junjie,XIAO Hongbin,et al.Preparation and properties analysis of plasma sprayed nano alumina coatings[J].Surface Technology,2015,44(6):1-6.
[5]AMO K,JOZE K,JURAJ Todt,et al.Nanostructured coatings for tooling applications[J].Int Journal of Refractory Metals and Hard Materials,2017,60(Part B):2019-2224.
[6]LIU Zhe,HE Jining,YAN Dianran,et al.Atmospheric reactive plasma sprayed Fe-Al2O3-Fe Al2O4 composite coating and its property evaluation[J].Applied Surface Science,2011,257(23):10282-10288.
[7]YANG Yong,CHRN Xueguang,WANG Lei,et al.Sliding wear behavior of in-situ Fe Al2O4 matrix nanocomposite coating fabricated by plasma spraying[J].Tribology International,2015,81(1):97-104.
[8]曹将栋,刘伟.等离子喷涂制备Co基Ti C金属陶瓷涂层的微观形貌及耐高温腐蚀性能[J].腐蚀与防护,2017,6(38):416-419.CAO Jiangdong,LIU Wei.Microstructure and High-temperature corrosion resistance of Co-based Ti C cermet coating prepared by plasma spraying[J].Corrosion&Protection,2017,38(6):20-29.
[9]杨忠须,刘贵民,闫涛,等.热喷涂Mo及Mo基复合涂层研究进展[J].表面技术,2015,5(44):20-29.YANG Zhongxu,LIU Guimin,YAN Tao,et al.Research progress of Mo and Mo-based coating prepared by thermal spraying[J].Surface Technology,2015,5(44):20-29.
[10]吕忠.钼的发展与应用[J].中国钼业,1996,20(4):13-16.LüZhong.Development and application of molybdenum industry[J].China Molybdenum Industry,1996,20(4):13-16.
[11]XU Jiaying,ZOU Binglin,FAN Xizhi,et al.Reactive plasma spraying synthesis and characterization of Ti B2-Ti C-Al2O3/Al composite coatings on a magnesium alloy[J].Journal of Alloys and Compounds,2014,596(25):10-18.
[12]ZOU Binglin,TAO Shunyan,HUANG Wenzhi,et al.Synthesis and characterization of in situ Ti C-Ti B2 composite coatings by reactive plasma spraying on a magnesium alloy[J].Applied Surface Science,2013,264(1):879-885.
[13]MOHAMMED S,MOTOHIRO Y,MASAHIRO F,et al.Challenges upon reactive plasma spray Nitriding:Al powders and fabrication of Al N coatings as a case study[J].Journal of Thermal Spray Technology,2015,25(5):851-873.
[14]HE Jining,ZHANG Fanyong,MI Pengbo,et al.Microstructure and wear behavior of nano C-rich Ti CN coatings fabricated by reactive plasma spraying with Ti-graphite powders[J].Surface and Coatings Technology,2016,305:215-222.
[15]ZOU Binglin,WANG Ying,XU Jiaying,et al.Mechanism in reactive plasma spraying synthesis of Ti C-Ti B2 composite coating[J].Journal of Asian Ceramic Societies,2013,1:322-327.
[16]LIN Li,KANG Jiajie,DONG Tianshun,et al.Formation mechanism of supersonic plasma-sprayed nanostructured composite ceramic coatings[J].Vacuum.2015,117:40-46.
[17]HENAO J,CONCUSTELL A,DOSTA S,et al.Influence of the substrate on the formation of metallic glass coatings by cold gas spraying[J].Journal of Thermal Spray Technology,2016,25(5):992-1009.
[18]王钰.反应火焰喷涂Mo2Fe B2金属陶瓷涂层的组织及性能[D].武汉:湖北工业大学,2009:17-35.WANG Yu.The Structure and properties of Mo2Fe B2 meta ceramic coatings prepared by reaction flame spraying[D].Wuhan:Hubei University of Technology,2009:17-35.
[19]钱建国.反应火焰热喷涂制备Mo2Fe B2系金属陶瓷涂层的组织与性能[J].机械工程材料,2011,35(10):80-84.QIAN Jianguo.Microstructure and properties of reactive flame sprayed Mo2Fe B2 Cermet coating[J].Mechanical Engineering Material,2011,35(10):80-84.
[20]姜超平,邢亚哲,郝建民,等.Mo基合金粉末对Fe基非晶涂层耐蚀性能影响[J].热加工工艺,2011,40(8):144-146.JIANG Chaoping,XING Yazhe,HAO Jianmin,et al.Effects of Mo-based alloy powder on corrosion resistance of Fe-based amorphous coating[J].Hot Working Technology,2011,40(8):144–146.
[21]毕恩兵,孙宏飞,王灿明,等.纳米陶瓷等离子喷涂层硬度的Weibull分布及与涂层组构的对应特性[J].材料保护,2012,5(45):24-27.BI Enbing,SUN Hongfei,WANG Canming,et al.Weibull distribution of microhardness of plasma sprayed nanostructured ceramic coating and relation between phase composition and microhardness[J].Journal of Materials Protection,2012,5(45):24-27.
[22]ZHANG Xiancheng,XU Bishi,TAO Shantung.Effect of spraying power on the microstructure and mechanical properties of supersonic plasma-sprayed Ni-based alloy coatings[J].Applied Surface Science,2008,254(20):6318-6326.