| 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 Author | Pei, Z. L.(zlpei@imr.ac.cn) ; Sun, C.(csun@imr.ac.cn) |
| 2021-03-01 | |
| Source Publication | APPLIED SURFACE SCIENCE
 |
| ISSN | 0169-4332 |
| Volume | 541Pages:14 |
| Abstract | Ni-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. |
| Keyword | Microstructure Particle/matrix interface Phase transition Tribological properties Corrosion resistance |
| Funding Organization | National Science and Technology Major Project |
| DOI | 10.1016/j.apsusc.2020.148367 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Science and Technology Major Project[2017-VII-0012-0108] |
| WOS Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000608921900001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/159048 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Pei, Z. L.; Sun, C. |
| Affiliation | 1.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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