Micro-Resistance Spot Welding of Nickel Free Austenitic Stainless Steel

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Abstract:

Micro-resistance spot weldability of nickel free stainless steel sheet was studied to fabricate medical implants. Weld lobe was established and the effect of welding parameters on joint strength was investigated. Weld nugget represented a rapidly quenched austenitic cellular structure whose cell size is several μm with a little ferrite. The amount of δ-ferrite in weld nugget is smaller than that predicted by some Schaefller diagrams due to rapid solidification during micro-resistance spot welding.

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Materials Science Forum (Volumes 539-543)

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4081-4086

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March 2007

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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