2,808
edits
Changes
→5.2.1 Technical Grade Pure Nickel
Because of the always present thin oxide layer on its surface, nickel is not suitable as a contact material for switching contacts.
Fig. 5.45:Strain hardeningof technical purenickel bycold working Fig[[File:Direction dependence of the spring bending limit. 5.46;Softening jpg|right|thumb|Direction dependence of the spring bending limit of technicalgrad nickel after annealingfor 3 hrs after 50% cold workingselected copper materials (Wieland)]]
Fig. 5.46; Softening of technical grad nickel after annealing for 3 hrs after 50% cold working
===5.2.2 Nickel Alloys===
