The heating temperature and holding time were selected as 1040☌ and 60 minutes, respectively. Four pairs of such steel were taken and welded to form four joints. The purpose of this work is to heat the welded samples uniformly so that a possible formation of austenite can be obtained, and hence, residual stresses, if any, can be recovered. Not used in calculations.This paper presents analysis and comparison into mechanical behaviour and microstructural attributes of postweld heat-treated AISI 1020 (0.21%-C) plates joined by the shielded metal arc welding (SMAW) process. Transcribed image text: (a) Test Data Engr. Show transcribed image text Expert Answer Table.Data and Analysis for a Tension Test on AISI 1020 Resulting stress–strain curve.Discuss the results. (d) Calculate corrected values of true stress, and plot the (c) Calculate true stresses and strains, and plot the true What would be the new length of the original 50.8mm Estimate theĮlastic strain recovered and the plasticstrain remaining. Ε = 0.0070, and thespecimen unloaded to zero force. (b) Assume that the test was interrupted upon reaching a strain Percent elongation, and percent reduction in area.Discuss the Modulus, 0.2% offset yield strength, ultimate tensile strength, (a)By plotting corresponding engineering stress-strainsĭiagram determinethe following materials properties: elastic (3) The final minimum diameter in thenecked region was 5.28 (2) Similarmarks originally 50.8mm apart were 70.9mmĪpart. Region were 38.6mm apart due to the lengthwise stretching in the Marks originally 25.4mm apart and on opposite sides of thenecked Were reassembled, and the followingmeasurements were made: (1) Measured manually with a micrometer in the necked region at Representative test data are given in Table (a) in the form ofįorce and engineering strain. Hot-rolled steel having an initial diameter of 9.11 mm. A tension test was conducted on a specimen of AISI 1020
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