Cr3C2含量对Cr3C2/Ni3Al复合材料磨损性能的影响

Q4 Engineering

工程设计学报 Pub Date : 2016-01-01 DOI:10.13374/J.ISSN2095-9389.2016.08.014

L. Fu, W. Han, Yanzhao Xie, Chang-hai Li, C. Dong, Lin Zhao, Z. Tian

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引用次数: 1

摘要

采用热等静压法制备了不同Cr3C2含量的ni3al合金及其复合材料。采用扫描电子显微镜(SEM)、能谱仪(EDS)、x射线衍射仪(XRD)和磨损摩擦测试技术研究了Cr3C2含量对Cr3C2/Ni3Al复合材料显微组织、硬度和磨损性能的影响。结果表明:在HIP过程中，原始Cr3C2与Ni3Al颗粒发生互扩散，Cr3C2颗粒部分转变为M7C3 (M=Cr, Fe, Ni)结构;在特定的摩擦磨损条件下，Cr3C2/Ni3Al复合材料的耐磨性比Ni3Al合金提高了约4-10倍。Cr3C2/Ni3Al复合材料对对片的切削和刮擦效果随着Cr3C2添加量的增加而降低，从而降低对片磨损率。

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Influence of Cr3C2 content on the wear properties of Cr3C2/Ni3Al composites

The Ni3Al-alloy and its composites with different Cr3C2 contents were fabricated by a hot isostatic pressing (HIP) technique. The influences of Cr3C2 content on the microstructure, hardness and wear properties of the Cr3C2/Ni3Al composites were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and wear tribometry. The results show that inter-diffusion occurs between the original Cr3C2 and the Ni3Al particles during the HIP process and the Cr3C2 particles partially transform into M7C3 (M=Cr, Fe, Ni) structures. Under specific friction and wear conditions, the wear resistance of the Cr3C2/Ni3Al composites is significantly improved due to the addition of Cr3C2 particles by about 4-10 times, compared to the Ni3Al alloy. In addition, the cutting and scraping effects of counter-part disks by the Cr3C2/Ni3Al composites decreases with increasing Cr3C2 addition, resulting in a reduction in wear rate of counter-part disks.

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来源期刊

工程设计学报 Engineering-Engineering (miscellaneous)

CiteScore

0.60

自引率

0.00%

发文量

2447

审稿时长

14 weeks

期刊介绍： Chinese Journal of Engineering Design is a reputable journal published by Zhejiang University Press Co., Ltd. It was founded in December, 1994 as the first internationally cooperative journal in the area of engineering design research. Administrated by the Ministry of Education of China, it is sponsored by both Zhejiang University and Chinese Society of Mechanical Engineering. Zhejiang University Press Co., Ltd. is fully responsible for its bimonthly domestic and oversea publication. Its page is in A4 size. This journal is devoted to reporting most up-to-date achievements of engineering design researches and therefore, to promote the communications of academic researches and their applications to industry. Achievments of great creativity and practicablity are extraordinarily desirable. Aiming at supplying designers, developers and researchers of diversified technical artifacts with valuable references, its content covers all aspects of design theory and methodology, as well as its enabling environment, for instance, creative design, concurrent design, conceptual design, intelligent design, web-based design, reverse engineering design, industrial design, design optimization, tribology, design by biological analogy, virtual reality in design, structural analysis and design, design knowledge representation, design knowledge management, design decision-making systems, etc.