Comparative study on plasticity and fracture behaviour of Ti/Al multilayers

Kunkun Fu; Leigh Sheppard; Li Chang; Xianghai An; Chunhui Yang; Lin Ye

doi:10.1016/j.triboint.2018.05.033

Comparative study on plasticity and fracture behaviour of Ti/Al multilayers

Kunkun Fu, Leigh Sheppard, Li Chang, Xianghai An, Chunhui Yang, Lin Ye

Western Sydney University

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

This paper presented a comparative study on plasticity and fracture behaviour of nanostructured Ti/Al multilayers with two individual layer thicknesses Î». The nanoindentation results showed that film buckling appears in the 10"¯nm multilayer, whereas localised shear bands are detected in the 100"¯nm multilayer. The nanoscratch results indicated that localised conformal cracks and spalling are the dominant fracture mode in the multilayer with Î»"¯="¯10"¯nm, whereas adhesive failure is observed in the 100"¯nm multilayer when a critical normal load is reached. The work of adhesion of the 10"¯nm multilayer was much larger than that with Î»"¯="¯10"¯nm, possibly due to the high hardness and few dislocation slips by the confined layer mechanism.

Original language	English
Pages (from-to)	344-351
Number of pages	8
Journal	Tribology International
Volume	126
DOIs	https://doi.org/10.1016/j.triboint.2018.05.033
Publication status	Published - Oct 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

adhesion
fracture mechanics
nanostructured materials
plasticity

Access to Document

10.1016/j.triboint.2018.05.033

Cite this

@article{c1de13908ec441578890b78039026930,

title = "Comparative study on plasticity and fracture behaviour of Ti/Al multilayers",

abstract = "This paper presented a comparative study on plasticity and fracture behaviour of nanostructured Ti/Al multilayers with two individual layer thicknesses {\^I}». The nanoindentation results showed that film buckling appears in the 10{"}¯nm multilayer, whereas localised shear bands are detected in the 100{"}¯nm multilayer. The nanoscratch results indicated that localised conformal cracks and spalling are the dominant fracture mode in the multilayer with {\^I}»{"}¯={"}¯10{"}¯nm, whereas adhesive failure is observed in the 100{"}¯nm multilayer when a critical normal load is reached. The work of adhesion of the 10{"}¯nm multilayer was much larger than that with {\^I}»{"}¯={"}¯10{"}¯nm, possibly due to the high hardness and few dislocation slips by the confined layer mechanism.",

keywords = "adhesion, fracture mechanics, nanostructured materials, plasticity",

author = "Kunkun Fu and Leigh Sheppard and Li Chang and Xianghai An and Chunhui Yang and Lin Ye",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = oct,

doi = "10.1016/j.triboint.2018.05.033",

language = "English",

volume = "126",

pages = "344--351",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Comparative study on plasticity and fracture behaviour of Ti/Al multilayers

AU - Fu, Kunkun

AU - Sheppard, Leigh

AU - Chang, Li

AU - An, Xianghai

AU - Yang, Chunhui

AU - Ye, Lin

PY - 2018/10

Y1 - 2018/10

N2 - This paper presented a comparative study on plasticity and fracture behaviour of nanostructured Ti/Al multilayers with two individual layer thicknesses Î». The nanoindentation results showed that film buckling appears in the 10"¯nm multilayer, whereas localised shear bands are detected in the 100"¯nm multilayer. The nanoscratch results indicated that localised conformal cracks and spalling are the dominant fracture mode in the multilayer with Î»"¯="¯10"¯nm, whereas adhesive failure is observed in the 100"¯nm multilayer when a critical normal load is reached. The work of adhesion of the 10"¯nm multilayer was much larger than that with Î»"¯="¯10"¯nm, possibly due to the high hardness and few dislocation slips by the confined layer mechanism.

AB - This paper presented a comparative study on plasticity and fracture behaviour of nanostructured Ti/Al multilayers with two individual layer thicknesses Î». The nanoindentation results showed that film buckling appears in the 10"¯nm multilayer, whereas localised shear bands are detected in the 100"¯nm multilayer. The nanoscratch results indicated that localised conformal cracks and spalling are the dominant fracture mode in the multilayer with Î»"¯="¯10"¯nm, whereas adhesive failure is observed in the 100"¯nm multilayer when a critical normal load is reached. The work of adhesion of the 10"¯nm multilayer was much larger than that with Î»"¯="¯10"¯nm, possibly due to the high hardness and few dislocation slips by the confined layer mechanism.

KW - adhesion

KW - fracture mechanics

KW - nanostructured materials

KW - plasticity

UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:46822

U2 - 10.1016/j.triboint.2018.05.033

DO - 10.1016/j.triboint.2018.05.033

M3 - Article

SN - 0301-679X

VL - 126

SP - 344

EP - 351

JO - Tribology International

JF - Tribology International

ER -

Comparative study on plasticity and fracture behaviour of Ti/Al multilayers

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this