EFFECT OF PRE-POST TIG WELDING HEAT TREATMENT ON CAST NI SUPERALLOY

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dc.contributor.authorC. SAIB
dc.contributor.authorM. ZAOUI
dc.contributor.authorS. Amroune
dc.contributor.authorH. Ghouss
dc.date.accessioned2021-03-03T09:50:51Z
dc.date.available2021-03-03T09:50:51Z
dc.date.issued2020
dc.description.abstractThe effect of a preheating (before) and post (after) welding heat treatment on the microstructure and mechanical properties of the scrap blades made of cast INC738LC superalloy is the main goal of the present investigation. The filler used in TIG welding was INC 625 solution hardened superalloyas proposed solution for hot cracking of the cast INC738LC superalloyin literature. The TIG welding was processed with respect to the constant optimized parameters (current, voltage, speed, gas flux rate and number of passes) to make a mechanical properties comparison between as received and the welded superalloy with heat treatedspecimens. The characterization techniques employed in this study are hardness measurements, tensile tests, optical microscopy and scanning electron microscopy. We found that the proposed preheating improves the TIG welding of the INC 738 LC superalloy specimens and the post welding heat treatment as expected enhances its mechanical properties.en_US
dc.identifier.urihttp://dspace.univ-msila.dz:8080//xmlui/handle/123456789/23982
dc.publisherUniversité de M'silaen_US
dc.subjectNi-basesuperalloy; Microstructure; Heat treatment; Welding; Precipitationen_US
dc.titleEFFECT OF PRE-POST TIG WELDING HEAT TREATMENT ON CAST NI SUPERALLOYen_US
dc.typeArticleen_US

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