Zn-Al-Cu-TiB2原位复合材料的显微组织、力学性能及耐磨性
采用混合盐法（K2TiF6,KBF4）在反应温度875°C下制备Zn-Al-Cu-TiB2（ZA27-TiB2）原位复合材料。研究此复合材料的显微组织、力学性能和耐磨性。微观组织分析表明,复合材料中的TiB2颗粒细小,分布均匀。复合材料的力学性能随着颗粒含量的增加而显著增加,相对基体合金,5%TiB2增强复合材料的布氏硬度提高了HB 18,抗拉强度提高了49 MPa。磨损实验结果说明复合材料的摩擦因数和磨损量随着颗粒含量的增加而明显降低,当TiB2含量增加到5%时,磨损率由5.9×10-3 mm3/m降低到1.3×10-3 mm3/m。摩擦因数和磨损表面形貌变化表明,由于TiB2颗粒的引入,材...
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| Published in | 中国有色金属学报：英文版 Vol. 25; no. 1; pp. 103 - 111 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1003-6326 |
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| Abstract | 采用混合盐法（K2TiF6,KBF4）在反应温度875°C下制备Zn-Al-Cu-TiB2（ZA27-TiB2）原位复合材料。研究此复合材料的显微组织、力学性能和耐磨性。微观组织分析表明,复合材料中的TiB2颗粒细小,分布均匀。复合材料的力学性能随着颗粒含量的增加而显著增加,相对基体合金,5%TiB2增强复合材料的布氏硬度提高了HB 18,抗拉强度提高了49 MPa。磨损实验结果说明复合材料的摩擦因数和磨损量随着颗粒含量的增加而明显降低,当TiB2含量增加到5%时,磨损率由5.9×10-3 mm3/m降低到1.3×10-3 mm3/m。摩擦因数和磨损表面形貌变化表明,由于TiB2颗粒的引入,材料在磨损初期的磨损机制发生了变化。 |
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| AbstractList | 采用混合盐法（K2TiF6,KBF4）在反应温度875°C下制备Zn-Al-Cu-TiB2（ZA27-TiB2）原位复合材料。研究此复合材料的显微组织、力学性能和耐磨性。微观组织分析表明,复合材料中的TiB2颗粒细小,分布均匀。复合材料的力学性能随着颗粒含量的增加而显著增加,相对基体合金,5%TiB2增强复合材料的布氏硬度提高了HB 18,抗拉强度提高了49 MPa。磨损实验结果说明复合材料的摩擦因数和磨损量随着颗粒含量的增加而明显降低,当TiB2含量增加到5%时,磨损率由5.9×10-3 mm3/m降低到1.3×10-3 mm3/m。摩擦因数和磨损表面形貌变化表明,由于TiB2颗粒的引入,材料在磨损初期的磨损机制发生了变化。 |
| Author | 陈飞 王同敏 陈宗宁 毛丰 韩强 曹志强 |
| AuthorAffiliation | 大连理工大学材料科学与工程学院,大连116024 |
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| DocumentTitleAlternate | Microstructure, mechanical properties and wear behaviour of Zn-Al-Cu-TiB2 in situ composites |
| EndPage | 111 |
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| Notes | Fei CHEN,Tong-min WANG,Zong-ning CHEN,Feng MAO,Qiang HAN,Zhi-qiang CAO（School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China） 43-1239/TG Zn-Al-Cu-TiB2（ZA27-TiB2） in situ composites were fabricated via reactions between molten aluminum and mixed halide salts（K2TiF6 and KBF4） at temperature of 875 °C. The microstructure, mechanical properties and wear behavior of the composites were investigated. Microstructure analysis shows that fine and clean TiB2 particles distribute uniformly through the matrix. The mechanical properties of the composites increase with the increase in TiB2 content. As TiB2 content increases to 5%（mass fraction）, an improvement of HB 18 in hardness and 49 MPa in ultimate tensile strength（UTS） is achieved. The overall results reveal that the composites possess low friction coefficients and the wear rate is reduced from 5.9×10-3 to 1.3×10-3 mm3/m after incorporating 5% TiB2. Friction coefficient and worn surface analysis indicate that there is a change in the wear mechanism in the initial stage of wear test after introducing in situ TiB2 particles into the matrix. in situ composites;TiB2 particles;friction coefficient;wear rate;mechanical properties |
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| PublicationDate | 2015 |
| PublicationDateYYYYMMDD | 2015-01-01 |
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| PublicationDecade | 2010 |
| PublicationTitle | 中国有色金属学报：英文版 |
| PublicationTitleAlternate | Transactions of Nonferrous Metals Society of China |
| PublicationYear | 2015 |
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| Snippet | 采用混合盐法（K2TiF6,KBF4）在反应温度875°C下制备Zn-Al-Cu-TiB2（ZA27-TiB2）原位复合材料。研究此复合材料的显微组织、力学性能和耐磨性。微观组织分析表明,复合材料中... |
| SourceID | chongqing |
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| StartPage | 103 |
| SubjectTerms | TiB2颗粒 力学性能 原位复合材料 摩擦因数 磨损率 |
| Title | Zn-Al-Cu-TiB2原位复合材料的显微组织、力学性能及耐磨性 |
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