为抑制WS2在激光熔覆过程中的分解,增加其与金属基体的相容性,采用化学镀的方法,在WS2粉末颗粒表面包覆一层微米级Ni-P合金,对比研究了添加包覆粉末和未包覆粉末所制备的高温自润滑耐磨复合涂层的微观组织和室温、300℃和600℃下的摩擦学性能.NiCr-Cr3C2/30％ WS2(Ni-P)涂层组织主要为初生树枝状Cr7C3、共晶γ-(Fe,Ni)/Cr7C3和CrS,以及少量弥散分布的WS2；对涂层进行摩擦学实验表明,添加包覆粉末所制备的涂层摩擦学性能更佳,室温和300℃时,NiCr-Cr3C2/30％WS2(Ni-P)涂层有较低的摩擦系数,且室温、300℃和600℃时,NiCr-Cr3C2/30％ WS2(Ni-P)涂层磨损率都低于NiCr-Cr3C2/30％WS2涂层.
参考文献
| [1] | 俞友军,周健松,陈建敏,周惠娣,郭纯.激光熔覆NiCr/Cr3C2-Ag-BaF2/CaF2金属基高温自润滑耐磨覆层的组织结构及摩擦学性能[J].中国表面工程,2010(03):64-69,73. |
| [2] | 张光钧,吴培桂,许佳宁,朱屹峰,吕灵宾.激光熔覆的应用基础研究进展[J].金属热处理,2011(01):5-13. |
| [3] | Zhong M;Liu W .Laser surface cladding:the state of the art and challenges[J].Mechanical Engineering Science,2009,224:1041-1060. |
| [4] | 陈哲源,徐江,刘文今,钟敏霖.激光熔覆MoS2/TiC/Ni减摩耐磨复合涂层组织及磨损性能的研究[J].材料热处理学报,2007(z1):253-258. |
| [5] | Xiong DS. .Lubrication behavior of Ni-Cr-based alloys containing MoS2 at high temperature[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(2):1094-1099. |
| [6] | 章小峰,王爱华,张祥林,乔晓勇,黄早文.激光熔覆Ni45-CaF2-WS2自润滑涂层组织与性能[J].中国有色金属学报,2008(02):215-220. |
| [7] | LIU Xiu-bo;SHI Shi-hong;GUO Jian et al.Microstrncture and wear behavior of γ/Al4C3/TiC/CaF2 composite coating onγ-TiAl intermetallic alloy prepared by Nd:YAG laser cladding[J].Applied Surface Science,2009,255:5662-5668. |
| [8] | 章小峰,王爱华,张祥林,黄早文.激光熔覆Ni基纳米Ni包h-BN/CaF2涂层组织性能[J].华中科技大学学报（自然科学版）,2009(01):9-13. |
| [9] | 李溪滨,刘如铁,龚雪冰.添加Ni包覆MoS2的Ni-Cr高温固体自润滑材料的研究[J].稀有金属材料与工程,2003(10):783-786. |
| [10] | 黄传兵,杜令忠,张伟刚.NiCr/Cr3C2-BaF2·CaF2高温自润滑耐磨涂层的制备与摩擦磨损特性[J].摩擦学学报,2009(01):68-74. |
| [11] | 常国威;王建中.金属凝固过程中的晶体生长与控制[M].北京:冶金工业出版社,2002 |
| [12] | 毛卫民.金属材料成形与加工[M].北京:清华大学出版社,2008 |
| [13] | Xiang-MingHe;Xiu-BoLiu;Ming-Di Wang;Mao-ShengYang;Shi-Hong Shi;Ge-Yan Fu;Shu-Fa Chen .Elevated temperature dry sliding wear behavior of nickel-based composite coating on austenitic stainless steel deposited by a novel central hollow laser cladding[J].Applied Surface Science,2011(1):535-541. |
| [14] | Liu Y;Wang H M .Elevated temperature wear behaviors of Co-Mo-Si ternary metal silicide alloy[J].Scripta Materialia,2005,52:1235-1240. |
| [15] | HUANG Kai-jin,YAN Li,WANG Cun-shan,XIE Chang-sheng,ZHOU Chang-rong.Wear and corrosion properties of laser cladded Cu47Ti34Zr11Ni8/SiC amorphous composite coatings on AZ91D magnesium alloy[J].中国有色金属学报（英文版）,2010(07):1351-1355. |
| [16] | Wang AH;Zhang XL;Zhang XF;Qiao XY;Xu HG;Xie CS .Ni-based alloy/submicron WS2 self-lubricating composite coating synthesized by Nd : YAG laser cladding[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1/2):312-318. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%