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高温材料处理:国际期刊

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ISSN 打印: 1093-3611

ISSN 在线: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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EXPERIMENTAL INVESTIGATION OF SURFACE HARDNESS AND DRY SLIDING WEAR BEHAVIOR OF AA7050/B4Cp

卷 19, 册 3-4, 2015, pp. 291-305
DOI: 10.1615/HighTempMatProc.2016016824
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摘要

In this work, AA7050 aluminum alloy reinforced with B4C particles of average particle size 25 µm is examined. The composites are invented by varying the weight percentage of B4C particles in the liquid stir casting route. K2TiF6 is added as a flux to overcome the wetting problem between B4C and molten aluminum alloy. The influence of reinforcement, sliding velocity, sliding distance, and of applied load on the wear rate is studied using a pin-on-a disc equipment in experiments. Optical, scanning electron microscopy, and EDX analysis are performed to characterize the samples. The influence of high-temperature spark produced during electric discharge machining on composite materials was analyzed. The Rockwell hardness tests were compared on as cast worn and electric discharge-machined surfaces. The hardness of the composites increases, whereas the coefficient of friction decreases with addition of B4Cp. The hardness value of a worn surface was higher than as cast composites in all cases due to the presence of a ferrous metal, with its presence being confirmed by energy dispersive X-ray analysis. The hardness value of the electric discharge-machined surface of composites was lower than unreinforced aluminum alloy due to the increase in the gap distance. There is an improvement in wear resistance due to the forming of a tribo-rich mechanically mixed layer. The presence of iron and oxygen in the worn surface confirmed the MML and oxidation reaction. The B4C-reinforced composites show better wear resistance than a pure aluminum alloy.

对本文的引用
  1. Ranjith R., Giridharan P. K., Devaraj J., Bharath V., Influence of titanium-coated (B4Cp + SiCp) particles on sulphide stress corrosion and wear behaviour of AA7050 hybrid composites (for MLG link), Journal of the Australian Ceramic Society, 53, 2, 2017. Crossref

  2. Kumar Arvind, Rai R N, Fabrication, Microstructure and Mechanical Properties of Boron Carbide (B4Cp) Reinforced Aluminum Metal Matrix Composite - A Review, IOP Conference Series: Materials Science and Engineering, 377, 2018. Crossref

  3. Ranjith R., Giridharan P. K., Velmurugan C., Chinnusamy C., Formation of lubricated tribo layer, grain boundary precipitates, and white spots on titanium-coated graphite–reinforced hybrid composites, Journal of the Australian Ceramic Society, 55, 3, 2019. Crossref

  4. Iyyappan S Ganapathi, Sudhakarapandian R, Sakthivel M, Influence of silicon carbide mixed used engine oil dielectric fluid on EDM characteristics of AA7075/SiCp/B4Cp hybrid composites, Materials Research Express, 8, 8, 2021. Crossref

  5. S Venkatesan, P. K. Giridharan, N S Sivakumar, S Sharavanan, Subbiah Ram, A Senthamilselvi, Tribological behaviour of AA7168 hybrid composite sheets for aerospace structures fabricated through COMPO casting, Advances in Materials and Processing Technologies, 2021. Crossref

  6. Ranjith R, Pradeep V P, Senthil Kumar B R, Somasundaram K, Lakshmi Prasad K, Investigation on mechanical and tribological properties of AA6061/Gr composites for solar header pipes, Engineering Research Express, 4, 2, 2022. Crossref

  7. Senthil Kumar B. R., Gopalarama Subramaniyan G., Pragadish N., Venkatesh P. M., Sanjay Soni, Velu C. M., Navaneethakrishnan G., Vellingiri Suresh, Govindarajan Venkatesan, Kavimani Vijayananth, Investigations on Wear Behavior of Aluminium Composites at Elevated Temperature, Advances in Materials Science and Engineering, 2022, 2022. Crossref

  8. Chockalingam S., Subramaniyan G. Gopalarama, Bisen Anand, Kaliappan S., Sekar S., Patil Pravin P., Kumar T. Ch. Anil, Ramesh B., Venkatesan S., Kavimani Vijayananth, Optimization of Abrasive Wear Characteristics of Polyethylene/Acrylate Copolymer Nanocomposites, Advances in Materials Science and Engineering, 2022, 2022. Crossref

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