publication . Article . 2017

Dissolution of Grain Boundary Carbides by the Effect of Solution Annealing Heat Treatment and Aging Treatment on Heat-Resistant Cast Steel HK30

Francisco J. G. Silva; Jorge Santos; Ronny Miguel Gouveia;
Open Access
  • Published: 01 Jul 2017 Journal: Metals, volume 7, page 251 (eissn: 2075-4701, Copyright policy)
  • Publisher: MDPI AG
  • Country: Sweden
Abstract
Decreasing the weight of heavy-duty vehicles is an ongoing concern. However, the need to deal with high temperatures in components such as manifolds imposes, by itself, some restrictions regarding material selection, being further limited when other required properties (e.g., functional, manufacturing or cost requirements) are taken into account. Cast austenitic stainless steels may represent a good choice in this context but the existence of concentrated chromium carbides can generate undesirable results. A good combination of heat treatments can be applied to cast heat-resistant austenitic stainless steels, in an effort to achieve the dispersion of fine carbid...
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free text keywords: Aging heat treatment, Cast stainless steel, Grain boundary carbides, Solution annealing, Metallurgy and Metallic Materials, Metallurgi och metalliska material, Carbide, Creep, Intergranular corrosion, Materials science, Corrosion, Microstructure, Grain boundary, Austenite, Austenitic stainless steel, engineering.material, engineering, Metallurgy, lcsh:Mining engineering. Metallurgy, lcsh:TN1-997
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