石仲川,张晓云,汤智慧,陆峰.300M 钢表面冷喷涂锌镍复合涂层性能研究[J].表面技术,2016,45(6):100-106.
SHI Zhong-chuan,ZHANG Xiao-yun,TANG Zhi-hui,LU Feng.Properties of Cold Spray Zn/Ni Coatings on 300M Steel[J].Surface Technology,2016,45(6):100-106
300M 钢表面冷喷涂锌镍复合涂层性能研究
Properties of Cold Spray Zn/Ni Coatings on 300M Steel
投稿时间:2016-01-21  修订日期:2016-06-20
DOI:10.16490/j.cnki.issn.1001-3660.2016.06.015
中文关键词:  冷喷涂  锌镍复合涂层  微观结构  硬度  盐雾试验  抗腐蚀性能
英文关键词:cold spray  Zn/Ni coatings  microstructure  hardness  salt spray  anticorrosion performance
基金项目:
作者单位
石仲川 中国航空工业集团公司 北京中航长力能源科技有限公司,北京 100041 
张晓云 中国航空工业集团公司 北京航空材料研究院,北京 100095 
汤智慧 中国航空工业集团公司 北京航空材料研究院,北京 100095 
陆峰 中国航空工业集团公司 北京航空材料研究院,北京 100095 
AuthorInstitution
SHI Zhong-chuan Beijing AVIC-Changli Energy Science and Technology Co., Ltd, AVIC, Beijing 100041, China 
ZHANG Xiao-yun Beijing Institute of Aeronautical Materials, AVIC, Beijing 100095, China 
TANG Zhi-hui Beijing Institute of Aeronautical Materials, AVIC, Beijing 100095, China 
LU Feng Beijing Institute of Aeronautical Materials, AVIC, Beijing 100095, China 
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中文摘要:
      目的 研究 300M 高强钢表面的冷喷涂锌镍复合涂层的涂层性能。 方法 采用机械混合的方式将锌粉和镍粉进行混合,利用低温气动喷涂技术在 300M 高强钢表面制备锌镍复合涂层,采用扫描电子显微镜、能量色散谱和显微硬度测试仪研究涂层的微观组织结构。采用普通中性盐雾加速实验、涂层破损盐雾加速试验及户外暴晒试验,对冷喷涂锌镍涂层的抗腐蚀性能进行综合评价。考核冷喷涂对300M 钢基材疲劳性能的影响。结果 根据 SEM 的表面及截面图片分析,冷喷涂锌镍复合涂层十分致密,且无孔隙及裂纹,涂层的孔隙率平均为 0.4%,结合强度 40 MPa 左右。根据 EDS 结果分析,锌镍复合涂层中锌的质量分数为 85%左右,镍的质量分数为 15%左右。锌镍复合涂层的显微硬度为 70.8HV0.49。锌镍复合涂层中镍粒子的强化作用,提高了涂层的硬度。冷喷涂锌镍复合涂层具有非常好的抗腐蚀性能,盐雾实验超过 770 h,即使涂层破损也可以达到 600 h。户外暴晒实验 12 个月表面无明显腐蚀,并且冷喷涂对 300M 钢基材的疲劳性能没有影响。 结论 冷喷涂锌镍复合涂层作为抗腐蚀涂层,可以对300M 高强钢提供保护。
英文摘要:
      Objective To study the performance of Zn/Ni composite coatings on 300M high-strength steel surface, which were deposited by cold gas dynamic spray. Methods The coating was sprayed by Zn and Ni physical mixture powder on 300M high-strength steel surface. The morphology and microstructure of the coatings were analyzed by the SEM images, EDS and microhardness tester. The corrosion resistance of Zn/Ni coatings was comprehensively investigated by neutral salt-spray test, coating furcated test and atmospheric exposure test. The effect of cold spray on the fatigue property of 300M steel substrate was tested. Results The surface and cross-section SEM images indicated that the cold sprayed Zn/Ni composite coatings were very compact, without pores and cracks, the porosity of Zn/Ni coatings was 0.4% and the bonding strength was 40 MPa. The EDS analysis result showed that the mass fractions of Zn and Ni in the Zn/Ni composite coatings were about 85% and 15%, respectively. The microhardness of Zn/Ni coatings was 70.8HV0.49, this is because the hardness of the coatings was improved by the strengthening effect of Ni in the Zn/Ni coatings. Cold sprayed Zn/Ni composite coatings had very good corrosion resistance. The salt spray result of Zn/Ni coatings could reach 770 h, and it could reach 600 h even at coatings failure. No obvious corrosion was observed on the surface after 12-month atmospheric exposure test, and cold spray had no influence on the fatigue property of 300M steel substrate. Conclusion Cold sprayed Zn/Ni composite coatings could be used as efficient corrosion-resistant coatings on 300M high strength steel surfaces.
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