5

Micro-welding of shape-memory alloys

M.I. Khan,     Smarter Alloys, Canada

Y. Zhou,     University of Waterloo, Canada

Abstract:

This chapter discusses the challenges in the joining of Nitinol (i.e. NiTi alloys) shape-memory alloys (SMAs) which are becoming increasingly popular in medical-device applications due to their unique shape-memory effect and pseudoelastic (i.e. superelastic) functional properties. The chapter starts by providing a brief introduction to the properties of SMAs followed by a review of how different micro-welding techniques affect the alloy microstructure and properties. Fundamentals for key micro-welding processes used in joining Nitinol SMAs are detailed, including resistance and laser micro-welding (i.e. RMW ...

Get Joining and Assembly of Medical Materials and Devices now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.