Discontinuous Precipitation of α-Cr Phase in Alloy 33 (Cr-Fe-Ni-N)
Source abstract
Abstract
Discontinuous precipitation (DP) reactions is a grain boundary (GB) diffusion-controlled phenomenon generating lamellar or rod-type equilibrium precipitates driven by a migrating GB that acts as a fast reaction path under the action of chemical and capillary forces, leaving behind a regularly spaced array of precipitates growing cooperatively from the supersaturated matrix. In multicomponent alloy systems containing both substitutional and interstitial solutes, DP usually is constituted of either Cr-rich M23C6 or Cr2N lamellae Recently, -phase has been observed as the main precipitate comprising a DP colony in superaustenitic stainless steel The DP reactions are of practical interest because of its effect on corrosion and mechanical properties of alloys under service conditions
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: High Temperature Alloys and Creep · Microstructure and Mechanical Properties of Steels · Metal Alloys Wear and Properties
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References (6)
Show source-provided references
1. The authors are grateful to support of Brazilian Funding Agency-CNPq, Brazil.
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