Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7001533 | Tribology International | 2018 | 8 Pages |
Abstract
This paper presented a comparative study on plasticity and fracture behaviour of nanostructured Ti/Al multilayers with two individual layer thicknesses λ. The nanoindentation results showed that film buckling appears in the 10â¯nm multilayer, whereas localised shear bands are detected in the 100â¯nm multilayer. The nanoscratch results indicated that localised conformal cracks and spalling are the dominant fracture mode in the multilayer with λâ¯=â¯10â¯nm, whereas adhesive failure is observed in the 100â¯nm multilayer when a critical normal load is reached. The work of adhesion of the 10â¯nm multilayer was much larger than that with λâ¯=â¯10â¯nm, possibly due to the high hardness and few dislocation slips by the confined layer mechanism.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Kunkun Fu, Leigh Sheppard, Li Chang, Xianghai An, Chunhui Yang, Lin Ye,