Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 835, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2022.142651
Keywords
Multilayer; Hardness; Amorphous interlayer
Categories
Funding
- Natural Science Foundation of Shandong Province [ZR2021ME021, ZR2016EMM17, ZR2019MA042]
- National Natural Science Foundation of China [51771090, 52071176]
- priority academic program development of Jiangsu higher education institutions (PAPD)
Ask authors/readers for more resources
The hardness of Ag/Nb/Cu/Nb multilayers with Nb amorphous interlayer was found to be significantly improved compared to Ag/Cu multilayers. The length scale effect of strengthening became broader in the range of 5-60 nm. The addition of Nb amorphous interlayer contributed to the enhancement by introducing modulus mismatch and crystal/amorphous interfaces (CAIs) that increased resistance to dislocation transmission and inhibited deformation of the amorphous layer.
In this work, the hardness of Ag/Nb/Cu/Nb multilayers with Nb amorphous interlayer were investigated as the individual layer thickness of Ag or Cu (h(Ag) or hCu) varies from 5 to 120 nm. The hardness values of Ag/Nb/Cu/Nb multilayers improve a lot compared with those of the Ag/Cu multilayers and the length scale effect of strengthening becomes broadening in the range of 5-60 nm. At h(Ag) = 60 nm, the hardness remains high and reaches 95% of the maximum hardness of h(Ag) = 5 nm. The enhancement can be contributed to the modulus mismatch and the crystal/amorphous interfaces (CAIs) due to the addition of Nb amorphous interlayer. These CAIs can both increase resistance of dislocations transmission and inhibit the deformation of the amorphous layer.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
