Title :
Effect of fretting in lead-free systems
Author :
Gagnon, D. ; Braunovic, M.
Author_Institution :
IREQ, Varennes, Que., Canada
Abstract :
Electrical performance characteristics of lead-free solders and their potential effects on the reliability of electronic connector separable interfaces is one of the problem areas that has to be addressed. Since fretting is inherent in practically all electronic and electrical connections it is the aim of this work to determine the effect of fretting in commercially available lead-free alloys. For this purpose a number of lead-free alloy wires are subjected to fretting under different conditions such as different mating materials and contact load. Following the fretting tests, the contact zones damaged by the fretting action were subjected to detailed metallographic, scanning electron microscope (SEM) and energy dispersive X-ray (EDX) analyses which, in turn, enabled to make a comparative assessment of the lead-free alloys used in respect to their susceptibility to fretting.
Keywords :
X-ray chemical analysis; antimony alloys; bismuth alloys; contact resistance; copper alloys; electric connectors; electrical resistivity; metallography; microhardness; reliability; scanning electron microscopy; silver alloys; solders; tin alloys; wear; wear testing; EDX; SEM; SnAgCuSb; SnBi; contact resistance; electrical connections; electrical performance characteristics; electronic connections; electronic connector; energy dispersive X-ray analysis; fretting; lead free alloy wires; lead free solders; lead free systems; mating materials; metallography; reliability; scanning electron microscopy; susceptibility; Coatings; Contacts; Copper; Electronics industry; Environmentally friendly manufacturing techniques; Lead; Scanning electron microscopy; Testing; Tin; Wires;
Conference_Titel :
Electrical Contacts, 2004. Proceedings of the 50th IEEE Holm Conference on Electrical Contacts and the 22nd International Conference on Electrical Contacts
Print_ISBN :
0-7803-8460-1
DOI :
10.1109/HOLM.2004.1353126