Sen, Indrani Amankwah, E. Kumar, N. S. Fleury, E. Oh-ishi, K. Hono, K. Ramamurty, U. 2024-01-20T17:02:22Z 2024-01-20T17:02:22Z 2021-09-05 2011-05-24 0921-5093 https://pubs.kist.re.kr/handle/201004/130337 An experimental investigation into the effect of Cu on the mechanical properties of 0 and 3 wt.% Cu added SUS 304H austenitic stainless steel upon annealing at 700 degrees C for up to 100 h was conducted. Optical microscopy reveals grain coarsening in both the alloys upon annealing. Observations by transmission electron microscopy revealed the precipitation of nanometer-sized spherical Cu particles distributed within the austenitic grains and the presence of carbides at the dislocations. Both the yield and ultimate tensile strengths of the alloys were found to remain invariant with annealing. Tensile ductility and the threshold stress intensity factor range for fatigue crack growth for 3 wt.% Cu added alloy increase with annealing. These are attributed to the grain coarsening with annealing. In all, the addition of Cu to SUS 304H does not affect the mechanical performance adversely while improving creep resistance. (C) 2011 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA FATIGUE-CRACK GROWTH BEHAVIOR Microstructure and mechanical properties of annealed SUS 304H austenitic stainless steel with copper Article 10.1016/j.msea.2011.02.019 1 MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.528, no.13-14, pp.4491 - 4499 MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 528 13-14 4491 4499 scie scopus 000290004200030 2-s2.0-79953276193 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Science & Technology - Other Topics Materials Science Metallurgy & Metallurgical Engineering Article FATIGUE-CRACK GROWTH BEHAVIOR Steel Precipitation Grain growth Mechanical characterization Fatigue