高硬度材料激光熔覆钴基合金技术研究
摘要
本论文在GCr15轴承钢表面上,采用预置涂层法在基材表面预置金属Co基粉末,通过不同的激光工艺参数对涂层表面进行多道搭接激光熔覆试验研究,进行了参数优化,获得了最佳的激光熔覆工艺参数。并且借助光学显微镜、扫描电镜、X射线衍射仪、显微硬度计和摩擦磨损实验机等仪器设备对不同功率和不同扫描速度下熔覆层的组织结构进行了研究。研究结果表明:激光熔覆钴基粉末可以获得宏观质量好、无裂纹、气孔等缺陷且与基体呈冶金结合的熔覆层;激光熔覆层的硬度比基材的硬度有提高,抗磨损性能提高了2倍,激光熔覆层的组织紧密,覆层质量优良。
In this paper,laser cladding of Co-base powder were investigated in order to improve the property of GCr15 steel. The experiments of multitrack laser-clad coating were made by deferent parameters. And the best parameters were found through optimizing it. The structure of cladding tissues were analyzed formed by deferent power and deferent scanning velocities. the microstructure,hardness,of laser cladding specimens were studied by using SEM、TEM、EDS、XRD、micro-hardness tester and wear tester.
The results showed that the cladding layer without of pores and cracks can be obtained, and an excellent bonding between the cladding layer and the substrate was gotten with a strong metallurgical interface by parameters optimizing of. The anti-weariness property of laser cladding layer is improved 2 times, also its hardness is improved. The microstructure of laser cladding layer was in good quality with tight tissues.
In this paper,laser cladding of Co-base powder were investigated in order to improve the property of GCr15 steel. The experiments of multitrack laser-clad coating were made by deferent parameters. And the best parameters were found through optimizing it. The structure of cladding tissues were analyzed formed by deferent power and deferent scanning velocities. the microstructure,hardness,of laser cladding specimens were studied by using SEM、TEM、EDS、XRD、micro-hardness tester and wear tester.
The results showed that the cladding layer without of pores and cracks can be obtained, and an excellent bonding between the cladding layer and the substrate was gotten with a strong metallurgical interface by parameters optimizing of. The anti-weariness property of laser cladding layer is improved 2 times, also its hardness is improved. The microstructure of laser cladding layer was in good quality with tight tissues.
引文
1王家金等.激光加工技术.北京:中国计量出版社,1992:35～41
2李志忠.激光表面强化.北京:机械工业出版社,1992:76～79
3李强等.材料表面激光熔覆研究进展.材料科学与工艺.1996,4:22～23
4胡木林,谢长生,王爱华.激光熔覆材料相容性的研究进展.金属热处理.2001,5:18～22
5 J.M. Yellup. Laser clading using the powder blowing technique Surface and Coatings Tethnology.1995,71(2):121～128
6张魁武.国外激光熔覆材料、工艺和组织性能的研究.金属处理.2002,27:15～20
7 G. Abbas, D.R.F.West. Laser surface cladding of stellite and stellite-SiC composite deposits for enhanced hardness and wear. 1991,143(2):353～363
8陈华等.激光熔覆镍基合金的耐磨耐蚀性研究.金属热处理.2001,3:25～28
9戴化等.激光熔覆工艺对Co基合金气门密封面覆层组织的影响.机械工程材料学报.2002,26(6):25～28
10傅戈雁,刘义伦等.激光熔覆层开裂行为的影响因素及控制方法.光学技术.2000,26(1):84～87
11斯松华,袁小敏等.激光熔覆钴基合金涂层的组织结构.激光杂志.2002,23(4):58～59
12胡乾午,刘顺洪等.镍基合金激光熔覆层的热烈纹及预防措施研究.理化检验.1999,35(5):208～209
13陈传忠,边洁等.熔覆工艺对Ni60A激光熔覆层微观组织的影响.应用激光.2001,21(6):381～384
14马岳,段祝平等.预置粉末工艺对熔覆层组织和性能的影响.表面技术.2000,29(5):12～14
15孙建强,潘邻等.机车气门密封面激光熔覆钴基合金的应用研究.材料保护.2003,36(4):60～61
16王存山,夏元良等.宽带激光熔覆Ni基合金涂层结合区组织结构.应用激光.2001,21(2):88～90
17李明喜,何宜柱等.Ni基合金/45#钢宽、窄带熔覆钴基合金的组织.2003,30(11):1044～1048
18孙荣禄,王云山等.45#钢表面NiCrBSi合金激光熔覆层的组织和硬度.天津工业大学学报.2003,
22(5):79～81
19曾大文,夏辉等.Ni基合金激光熔覆层组织特征及凝固特征过程的研究.稀有材料与工程.2000,29(2):109～113
20宋武林,朱蓓蒂等.激光熔覆层热膨胀系数对其开裂敏感性的影响.华中理工大学学报.1999,27(1):42～44
21 Arvind Agarwal, Narendra B. Dahotre. Laser surface engineering of Titanium Diboride.Advanced Materials&Proceses.2000,8(1):43～45
22 Mitra. R. Fine M E,Weertman JR. Mater Res.1993,8(9):50～53
23 Hu C, Bamard L, Mridha S, Baker T N.Mater Process Technol.1996,9(1) :58～87
24 Alexandry Nichici,Ion David,Laser for material processing SPIE,1998,34(5):246～251
25 H. vilar,cladding, Journal of laser applications.1999,11(2)3:2～35
26 Zhou X. B.,Reaction coating on Aluminium alloys by laser processing Scrip Metallurgica et Materialia.1993, 28(1):219～224
27 David M Roessler,Laser in the automobile industry.SPIE, 1996, 27(3):194～201
28 Folkes,J.A.Laser cladding of Ti-6A1-4V with various carbide powders Journal of Laser Applications v 6 n 2 Jun.1994,7(2) :88～94
29 Shepeleva, Medres Ii, Kaplan W D, et al. Laser claddinn of turbine blades[J].Surface and Coatings Technology.2000,12(5):45～48
30 G.Abbas, D.R. F. West. Laser surface cladding of stellite and stellite SiC composite.wear.1991,143(2):353～363
31蒋振平.激光熔覆含碳化钨的镍基合金.激光与红外.2004,3:189～191
32彭如恕.45钢表面激光熔覆Ni-2+40%WC结合性能研究.激光杂志.2004,2:12～15
33陈浩等.激光熔覆耐磨涂层的研究进展.金属热处理.2002, 9:5～7
34徐春,罗源英.45#钢NiCrBSi激光涂复.中国激光.1997,24(1):18～21
35顾洪武.激光技术.1993,17:220～223
36陶锡麒,曹庆等.工艺参数对钴基合金激光熔覆层显微组织及开裂性的影响.激光技术.1999,19(5):206～208
37李儒荀等.激光合金化工艺的研究.表面技术.1996,25(6):13～16
38王忠柯,郑启光等.激光表面熔覆层凝固组织特征形成过程.中国激光.2000,24(1):64～66
39 Yongqiang Yang. Microstructure and propertyes of laser clad high temperature1996,29(3):125～130
40李强,雷廷权等.激光表面熔履SiCp/Ni-Cr-B-Si-C涂层的组织演化及相确定.中国激光.1999,26(1):31～33
41李连清.激光熔覆工艺的应用.宇航材料工艺. 2002,2:54～58
42张大伟,雷廷权,田贵福.激光熔覆及其在石油机械中的应用现状.中国激光.2002,36:50～52
43张维平,刘硕等.激光熔覆Ni基金属陶瓷复合涂层的裂纹研究.复合材料学报.2005,22(3):98～101
44王家金等.激光加工技术.北京:中国计量出版社,1992:35～41
45张松,颜水根,朱荆璞等.激光熔敷Co基合金的组织及涂盐热腐蚀性.材料科学进展.1993,7(4):304～30
2李志忠.激光表面强化.北京:机械工业出版社,1992:76～79
3李强等.材料表面激光熔覆研究进展.材料科学与工艺.1996,4:22～23
4胡木林,谢长生,王爱华.激光熔覆材料相容性的研究进展.金属热处理.2001,5:18～22
5 J.M. Yellup. Laser clading using the powder blowing technique Surface and Coatings Tethnology.1995,71(2):121～128
6张魁武.国外激光熔覆材料、工艺和组织性能的研究.金属处理.2002,27:15～20
7 G. Abbas, D.R.F.West. Laser surface cladding of stellite and stellite-SiC composite deposits for enhanced hardness and wear. 1991,143(2):353～363
8陈华等.激光熔覆镍基合金的耐磨耐蚀性研究.金属热处理.2001,3:25～28
9戴化等.激光熔覆工艺对Co基合金气门密封面覆层组织的影响.机械工程材料学报.2002,26(6):25～28
10傅戈雁,刘义伦等.激光熔覆层开裂行为的影响因素及控制方法.光学技术.2000,26(1):84～87
11斯松华,袁小敏等.激光熔覆钴基合金涂层的组织结构.激光杂志.2002,23(4):58～59
12胡乾午,刘顺洪等.镍基合金激光熔覆层的热烈纹及预防措施研究.理化检验.1999,35(5):208～209
13陈传忠,边洁等.熔覆工艺对Ni60A激光熔覆层微观组织的影响.应用激光.2001,21(6):381～384
14马岳,段祝平等.预置粉末工艺对熔覆层组织和性能的影响.表面技术.2000,29(5):12～14
15孙建强,潘邻等.机车气门密封面激光熔覆钴基合金的应用研究.材料保护.2003,36(4):60～61
16王存山,夏元良等.宽带激光熔覆Ni基合金涂层结合区组织结构.应用激光.2001,21(2):88～90
17李明喜,何宜柱等.Ni基合金/45#钢宽、窄带熔覆钴基合金的组织.2003,30(11):1044～1048
18孙荣禄,王云山等.45#钢表面NiCrBSi合金激光熔覆层的组织和硬度.天津工业大学学报.2003,
22(5):79～81
19曾大文,夏辉等.Ni基合金激光熔覆层组织特征及凝固特征过程的研究.稀有材料与工程.2000,29(2):109～113
20宋武林,朱蓓蒂等.激光熔覆层热膨胀系数对其开裂敏感性的影响.华中理工大学学报.1999,27(1):42～44
21 Arvind Agarwal, Narendra B. Dahotre. Laser surface engineering of Titanium Diboride.Advanced Materials&Proceses.2000,8(1):43～45
22 Mitra. R. Fine M E,Weertman JR. Mater Res.1993,8(9):50～53
23 Hu C, Bamard L, Mridha S, Baker T N.Mater Process Technol.1996,9(1) :58～87
24 Alexandry Nichici,Ion David,Laser for material processing SPIE,1998,34(5):246～251
25 H. vilar,cladding, Journal of laser applications.1999,11(2)3:2～35
26 Zhou X. B.,Reaction coating on Aluminium alloys by laser processing Scrip Metallurgica et Materialia.1993, 28(1):219～224
27 David M Roessler,Laser in the automobile industry.SPIE, 1996, 27(3):194～201
28 Folkes,J.A.Laser cladding of Ti-6A1-4V with various carbide powders Journal of Laser Applications v 6 n 2 Jun.1994,7(2) :88～94
29 Shepeleva, Medres Ii, Kaplan W D, et al. Laser claddinn of turbine blades[J].Surface and Coatings Technology.2000,12(5):45～48
30 G.Abbas, D.R. F. West. Laser surface cladding of stellite and stellite SiC composite.wear.1991,143(2):353～363
31蒋振平.激光熔覆含碳化钨的镍基合金.激光与红外.2004,3:189～191
32彭如恕.45钢表面激光熔覆Ni-2+40%WC结合性能研究.激光杂志.2004,2:12～15
33陈浩等.激光熔覆耐磨涂层的研究进展.金属热处理.2002, 9:5～7
34徐春,罗源英.45#钢NiCrBSi激光涂复.中国激光.1997,24(1):18～21
35顾洪武.激光技术.1993,17:220～223
36陶锡麒,曹庆等.工艺参数对钴基合金激光熔覆层显微组织及开裂性的影响.激光技术.1999,19(5):206～208
37李儒荀等.激光合金化工艺的研究.表面技术.1996,25(6):13～16
38王忠柯,郑启光等.激光表面熔覆层凝固组织特征形成过程.中国激光.2000,24(1):64～66
39 Yongqiang Yang. Microstructure and propertyes of laser clad high temperature1996,29(3):125～130
40李强,雷廷权等.激光表面熔履SiCp/Ni-Cr-B-Si-C涂层的组织演化及相确定.中国激光.1999,26(1):31～33
41李连清.激光熔覆工艺的应用.宇航材料工艺. 2002,2:54～58
42张大伟,雷廷权,田贵福.激光熔覆及其在石油机械中的应用现状.中国激光.2002,36:50～52
43张维平,刘硕等.激光熔覆Ni基金属陶瓷复合涂层的裂纹研究.复合材料学报.2005,22(3):98～101
44王家金等.激光加工技术.北京:中国计量出版社,1992:35～41
45张松,颜水根,朱荆璞等.激光熔敷Co基合金的组织及涂盐热腐蚀性.材料科学进展.1993,7(4):304～30
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