Journal
ARCHIVES OF METALLURGY AND MATERIALS
Volume 61, Issue 3, Pages 1079-1083Publisher
POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST METALL & MATER SCI PAS
DOI: 10.1515/amm-2016-0233
Keywords
T91 steel; post welded heat treatment; mechanical properties
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The paper presents the results of research on the influence of the time of annealing after welding at the temperature of 750 degrees C on the mechanical properties of a homogeneous welded joint of T91 steel. The welded joints were annealed at 750 degrees C for 0.5; 1.0; 1.5 and 2.0 hours. The research scope included the basic study, i.e. the measurement of hardness, the test of impact energy, the static tensile test, bending test, as well as the accelerated creep test. The results of the tests of mechanical properties indicate the possibility of using shorter annealing times for thin-walled welded joints, and thus the possibility of savings as a result of flexible heat treatments.
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