Nanoindentation characterized initial creep behavior of a high-entropy-based alloy CoFeNi
Artikel i vetenskaplig tidskrift, 2014

A crossover behavior in the initial creep stage during nanoindentation with a constant load for a high-entropy-based alloy CoFeNi is found. The holding time and stress in the indentation tests are evaluated to reveal the intrinsic mechanism of the crossover point. It indicated that the initial creep behavior is dominated by the strain-hardening at the beginning and then transit into the dislocation migration induced viscous stage. The transition presents the crossover, where the strain hardening effect predominates in a very short initial period while the viscous stage accounts for most of the initial creep stage with a time-dependent strain rate.

Författare

[Person 259633ca-448b-46ae-9a77-57ccc8aac198 not found]

Northwestern Polytechnical University

City University of Hong Kong

[Person ca3771ae-0db3-4b4e-801c-10a11ddeae8b not found]

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

[Person 905f477e-9632-425d-b73b-60f5a10340b3 not found]

City University of Hong Kong

[Person fe47aa74-aa13-4d3c-bf60-13b831bc81b3 not found]

City University of Hong Kong

[Person 48ad8183-02e5-4acd-8712-6411c16b1656 not found]

Northwestern Polytechnical University

[Person c489d3fa-7be1-4f69-bdcc-dd6b0c7fc344 not found]

City University of Hong Kong

[Person 9f5e1dea-548e-4f1e-8add-274c9def9693 not found]

City University of Hong Kong

Intermetallics

0966-9795 (ISSN)

Vol. 53 183-186

Ämneskategorier

Materialteknik

DOI

10.1016/j.intermet.2014.05.007

Mer information

Senast uppdaterat

2018-04-12