Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dominant factors for fracture at the micro-scale in electrodeposited nickel alloys

Published

Author(s)

May L. Martin, Li-Anne Liew, David T. Read, Todd Christensen, Frank W. DelRio, John Geaney

Abstract

Two different LIGA electrodeposited nickel alloys displayed distinct fracture modes after meso- scale tensile testing. The Ni-Co alloy failed in a ductile manner, while the Ni-Fe alloy failed in a more brittle-appearing manner. Various factors affecting the fracture are discussed; it was determined that the fracture mode did not depend upon the strain rate but did depend upon the sample geometry. The difference in the microstructure is likely the cause of the difference in fracture mode, as the Ni-Co alloy is fine-grained, while the Ni-Fe alloy is nano-grained and likely failed by a creep-like mechanism.
Citation
Sensors and Actuators A-Physical
Volume
314

Keywords

LIGA nickel alloys, fracture, small-scale testing

Citation

Martin, M. , Liew, L. , Read, D. , Christensen, T. , DelRio, F. and Geaney, J. (2020), Dominant factors for fracture at the micro-scale in electrodeposited nickel alloys, Sensors and Actuators A-Physical, [online], https://doi.org/10.1016/j.sna.2020.112239 (Accessed August 2, 2021)
Created July 31, 2020, Updated August 23, 2020