在Ni基高温合金表面预置3种不同WC含量的Ni78Si13Ti9(at%)粉末,采用激光熔覆制备了WC和原位自生TiC复相陶瓷增强Ni3(Si,Ti)基复合涂层.利用扫描电镜、能谱分析仪和X射线衍射仪对熔覆层组织进行分析,并测量了其显微硬度.结果表明,熔覆层与基体呈冶金结合,熔覆层组织主要由Ni(Si)固溶体、Ni3(Si,Ti)金属间化合物和WC-TiC复相陶瓷组成.随WC添加量增加,涂层中复相陶瓷含量增多;孔隙率增大;碳化物形态演变历程为不规则状、花瓣状以及不规则状和花瓣状共存.
参考文献
[1] | TAKASUGI T;NAGASHIMA M;IZUMI O .Strengthening and ductilization of Ni3Si by the addition of Ti elements[J].Acta Materialia,1990,38(05):747-755. |
[2] | 郭伟;徐庆鸿;田锡唐.激光熔覆的研究发展状况[J].宇航材料工艺,1998(02):33-35. |
[3] | 虢志德,李光霞,李长春.激光熔覆强化技术实验研究[J].航空学报,1995(02):209. |
[4] | DAVID B VEVERKA.Using High power Nd:YAG laser for processing aerospace materials[A].Anaheim,California,1989:19-23. |
[5] | John Failor .Laser Cladding and Inspection for Life Extension of Turbine Blades[J].Materials evaluation,1995(3):369-370. |
[6] | HUANG W D;CHEN J;LI Y M et al.Laser rapid forming technology of high performance dense metal components with complex structure[J].International Society for Optical Engineering,2005,5629:67-75. |
[7] | L. Sexton;S. Lavin;G. Byrne .Laser cladding of aerospace materials[J].Journal of Materials Processing Technology,2002(1):63-68. |
[8] | 黄卫东.新一代飞机和发动机对材料热成形技术的挑战与对策[J].航空制造技术,2004(10):28-31. |
[9] | 王华明.金属材料激光表面改性与高性能金属零件激光快速成形技术研究进展[J].航空学报,2002(05):473-478. |
[10] | Chen Y.;Wang HM. .Microstructure and wear resistance of laser clad TiC reinforced FeAl intermetallic matrix composite coatings[J].Surface & Coatings Technology,2003(1):30-36. |
[11] | X. Y. Xu;W. J. Liu;M. L. Zhong;H. Q. Sun .Synthesis and fabrication of WC particulate reinforced Ni_3Al intermetallic matrix composite coating by laser powder deposition[J].Journal of Materials Science Letters,2003(19):1369-1372. |
[12] | 樊丁,付锐,张建斌,戴景杰.激光熔覆原位自生TiC增强Ni3(Si,Ti)金属间化合物复合涂层研究[J].兰州理工大学学报,2004(06):16-18. |
[13] | K. Uenishi;K.F. Kobayashi .Formation of surface layer based on Al3Ti on aluminum by laser cladding and its compatibility with ceramics[J].Intermetallics,1999(5):553-559. |
[14] | 杨森,钟敏霖,刘文今.激光熔覆制备原位自生TiC颗粒强化Ni基合金复合涂层的研究[J].航空材料学报,2002(01):26-30. |
[15] | 叶大伦;胡建华.实用无机物热力学数据手册[M].北京:冶金工业出版社,2002 |
[16] | Cooper KP.;Lucas KE.;Hogan EA.;Slebodnick PL. .Microstructural inhomogeneities and sea water corrosion in laser-deposited Ti-6Al-4V alloy matrix/carbide particulate composite surfaces[J].Journal of Materials Science,1998(15):3805-3816. |
[17] | J. A. Vreeling;V. Ocelik .Ti-6Al-4V strengthened by laser melt injection of WC_p particles[J].Acta materialia,2002(19):4913-4924. |
[18] | GUILEMANY J M;J M DE PACO;NUTTING J et al.Characterization of the W2 C phase formed during the high velocity oxygen fuel spraying of a WC + 12PctCo powder[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1999,30(08):1913-1922. |
[19] | Lu L.;Chen ZD.;Leong CC.;Wong YS.;Fuh JYH. .In situ formation of TiC composite using selective laser melting[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2000(9):1555-1561. |
[20] | A. Saidi;M. Barati .Production of (W, Ti)C reinforced Ni-Ti matrix composites[J].Journal of Materials Processing Technology,2002(1/2):166-170. |
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%