Weldments of AISI grade 316 stainless steel, having a ferrite content of 4-6% and a variety of nitrogen concentrations were prepared using a modified element implant technique. Charpy impact specimens prepared from these weldments were subjected to a variety of aging treatments. Impact toughness decreases with aging time at all aging temperatures. Nitrogen is found to be beneficial to toughness. An empirical relation connecting the aging temperature, aging time and nitrogen content with toughness has been developed which can be used to estimate the time for embrittlement.
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Date
Estimation of embrittlement during aging of AISI 316 stainless steel TIG welds
Journal Title
Journal ISSN
Volume Title
Publisher
Indian Academy of Sciences
Abstract
2004
Description
Keywords
Aging of materials, Austenite, Ductility, Embrittlement, Ferrites, Stainless steel, Tensile strength, Toughness, Charphy impact, Lower shelf energy, TIG welds, Welds
Citation
Bulletin of Materials Science, 2004, 27, 6, pp. 511-515