Journal
MATERIALS SCIENCE AND TECHNOLOGY
Volume 31, Issue 14, Pages 1735-1744Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1179/1743284714Y.0000000751
Keywords
Dry rolling/sliding; Nanostructured pearlite; Hertzian contact; Residual stress; X-ray diffraction
Funding
- Tata Steel Limited, India
Ask authors/readers for more resources
The dry rolling sliding wear behaviour of pearlite that has an interlamellar spacing of just 85 nm has been characterised. Its wear resistance is found to be comparable to that of much harder bainitic steels. Microstructural observations indicate that there is substantial plastic deformation of both ferrite and cementite components of pearlite in the vicinity of the wear surface. Plasticity is not expected from Hertzian analysis that assumes a smooth contact surface. Instead, it is likely to be a consequence of exaggerated stresses due to surface roughness. The material remains ductile to shear strains in the order of 4. Diffraction data indicate that the coherent domain size is reduced to about half the interlamellar spacing and that some of the cementite may dissolve and contribute to the expansion of the lattice parameter of ferrite.
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