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Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites
Liu, J. H.1,2; Yan, J. X.1,2; Liu, Y. D.1,2; Li, W. H.1,2; Gu, W. S.1,2; Pei, Z. L.1; Gong, J.1; Sun, C.1
Corresponding AuthorPei, Z. L.(zlpei@imr.ac.cn) ; Sun, C.(csun@imr.ac.cn)
2021-03-01
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume541Pages:14
AbstractNi-18 at.% Mo/21 vol% diamond composites are prepared on steel substrates by electrodeposition. Influence of annealing temperature (450-750 degrees C) on the microstructure, phase composition, hardness, tribological properties and corrosion resistance of composites is analyzed. Results show that matrix grain grows from 7 nm to 38.4 nm with the increasing temperature. Wide and amorphous particle/matrix (P/M) interface is observed at 450 degrees C due to Mo segregation, improving hardness (11.3 GPa) and wear resistance of composites. However, the uneven distribution of composition at P/M interface leads to the occurrence of local corrosion and the reduction of corrosion resistance. MoNi and Mo2C intermetallics are precipitated in composites while the temperature is >480 degrees C and 681 degrees C, respectively. Phase transition decreases Mo segregation at P/M interface and causes the disappearance of amorphous P/M interface, which inhibits local corrosion and improves corrosion resistance. Meanwhile, the consumption of Mo, the graphitization of diamonds and the growth of grains cause the softening of composites. However, composite annealed at 750 degrees C with the lowest hardness (6.2 GPa) has the lowest wear rate (3.4 x 10(-6) mm(3) N-1 m(-1)), which breaks the traditional Archard model attributing to the lubrication of Mo2C.
KeywordMicrostructure Particle/matrix interface Phase transition Tribological properties Corrosion resistance
Funding OrganizationNational Science and Technology Major Project
DOI10.1016/j.apsusc.2020.148367
Indexed BySCI
Language英语
Funding ProjectNational Science and Technology Major Project[2017-VII-0012-0108]
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000608921900001
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159048
Collection中国科学院金属研究所
Corresponding AuthorPei, Z. L.; Sun, C.
Affiliation1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Liu, J. H.,Yan, J. X.,Liu, Y. D.,et al. Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites[J]. APPLIED SURFACE SCIENCE,2021,541:14.
APA Liu, J. H..,Yan, J. X..,Liu, Y. D..,Li, W. H..,Gu, W. S..,...&Sun, C..(2021).Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites.APPLIED SURFACE SCIENCE,541,14.
MLA Liu, J. H.,et al."Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites".APPLIED SURFACE SCIENCE 541(2021):14.
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