| 引用本文: | 张恕爱,王仲勋,樊玉星,邢勤,于仁萍,宫晓峰,肖凤艳,刘明.Si、Ti、Mo添加剂对自蔓延防护涂层性能的影响[J].材料科学与工艺,2022,30(6):43-52.DOI:10.11951/j.issn.1005-0299.20220053. |
| ZHANG Shu’ai,WANG Zhongxun,FAN Yuxing,XING Qin,YU Renping,GONG Xiaofeng,XIAO Fengyan,LIU Ming.Influence of Si, Ti, and Mo additives on properties of self-propagating protective coating[J].Materials Science and Technology,2022,30(6):43-52.DOI:10.11951/j.issn.1005-0299.20220053. |
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| Si、Ti、Mo添加剂对自蔓延防护涂层性能的影响 |
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张恕爱1,王仲勋1,樊玉星2,邢勤1,于仁萍1,宫晓峰1,肖凤艳1,刘明3
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(1.烟台职业学院 机械工程系,山东 烟台 264670; 2.南京工程学院 材料科学与工程学院,南京211167; 3.哈尔滨工程大学 表界面科学与技术研究所,哈尔滨150001)
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| 摘要: |
| 为了提升自蔓延涂层的各项性能,拓宽自蔓延涂层的应用领域,本文实验制备了两种自蔓延防护涂层,即Al和Fe2O3的自蔓延铝热涂层和含有Si、Ti、Mo添加剂的低温自蔓延铝热涂层,借助X射线衍射、扫描电子显微镜等技术对不同成分涂层的组织形貌和物相组成进行了对比分析。利用显微硬度计、万能实验机、多功能摩擦磨损试验机研究了两种涂层的力学性能和摩擦性能。研究表明,添加剂使得涂层的孔隙率降低了66.7%,结合强度提高32.3%,常温下显微硬度提高17.6%,断裂韧性提高了28%,耐磨性能提高约25%。两种涂层均呈现出以Al2O3相为主的陶瓷层、金属过渡层与基体的3层结构,Si、Ti、Mo添加剂使得涂层中出现了SiC、TiC、MoSi2等硬质相,且反应更为充分,结合强度、硬度、断裂韧性、摩擦性能均得到提升。 |
| 关键词: 防护涂层 自蔓延 添加剂 结合强度 耐磨性 铝热反应 |
| DOI：10.11951/j.issn.1005-0299.20220053 |
| 分类号:TG174.4 |
| 文献标识码:A |
| 基金项目:山东省高等学校科技计划项目(J17KB039)；山东省高等学校青创科技计划项目(2019KJB001)；烟台职业学院校本重点课题项目(2020XBZD005) . |
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| Influence of Si, Ti, and Mo additives on properties of self-propagating protective coating |
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ZHANG Shu’ai1, WANG Zhongxun1, FAN Yuxing2, XING Qin1, YU Renping1,GONG Xiaofeng1, XIAO Fengyan1, LIU Ming3
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(1.Department of Mechanical Engineering, Yantai Vocational College, Yantai 264670, China; 2.School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China; 3.Institute of Surface/Interface Science and Technology, Harbin Engineering University, Harbin 150001, China)
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| Abstract: |
| In order to improve the properties of self-propagating coatings and broaden their application scope, two kinds of self-propagating protective coatings were prepared, namely self-propagating aluminothermic coatings containing Al and Fe2O3 and low-temperature self-propagating aluminothermic coatings containing Si, Ti, and Mo. The microstructure, morphology, and phase composition of the coatings with different components were compared and analyzed by means of X-ray diffraction, scanning electron microscopy, and other techniques. The mechanical properties and friction properties of the two coatings were studied by using microhardness tester, universal testing machine, and multi-functional friction and wear testing machine. Results showed that the additives reduced the porosity of the coating by 66.7%, increased the bonding strength by 32.3%, increased the microhardness by 17.6% at room temperature, increased the fracture toughness by 28%, and increased the wear resistance by about 25%. Both coatings showed a three-layer structure of ceramic layer, metal bonding layer, and substrate dominated by Al2O3 phase. Due to the Si, Ti, Mo additives, hard phases such as SiC, TiC, and MoSi2 appeared in the coating. In addition, the reaction was more complete, and the bonding strength, hardness, fracture toughness, and friction properties were improved. |
| Key words: protective costing self-propagating additive bonding strength wear resistance aluminothermic reaction |
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