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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/194

Title: Modelling of fracture process in annealed sheet of AISI 202 stainless steel
Authors: Kumar, A N
Keywords: Stainless steel
anisotropy
recrystallized texture
microfractographic investigation
Issue Date: 1996
Publisher: Elsevier Science
Citation: Scripta Materialia, 34(3), 369-373
Abstract: Stainless steel is often used in rolled strips and sheets for many metal forming operations. The hot and cold rolled sheets are subjected to annealing treatment to relieve the internal stress and eliminate any anisotropy in the alloy. The anisotropic effects in strips or sheets are reported to be highly detrimental to. sheet forming and d.eep drawing operations (1,2). However, the annealing treatment must ensure that no recrystallized texture reappears after annealing. The anisotropic behaviour in cold-rolled as well as annealed sheel:s of high manganese austenitic stainless steels(AIS1 202 grade) has been recently in- vestigated onsidering tensile properties and icrostructure (3,4). AISI 202 grade alloy exhibits higher strength to weight ratio than the values obtained in conventional austenitic stainless steel because of three percent lower density and around forty percent higher yield strength (1,2,5). Inspite of several outstanding properties of the 202 grade, the alloy is mostly used in low to medium duty applications because much of the information relating to formability characteristics, anisotropic behaviour, transformation kinetic and mechanism, fatigue and fracture strength, etc., are either not available or incomplete (1,2). This paper attempts to examine the effect of sheet orientation on the fracture mechanism in the annealed sheet of AISI 202 grade alloy as an extension of earlier work (3). The results of microfractographic investigation are integrated to establish an empirical model of the fracture process in the alloy and explain the anisotropic effects in the ductility of the alloy as reported earlier (3).
URI: http://eprint.iitd.ac.in/dspace/handle/2074/194
Appears in Collections:Applied Mechanics

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