Aging-induced structural and magnetic transformations in 17-4 PH steel: A multi-technique investigation
Source abstract
Abstract
Solubilized plates of 17-4 PH stainless steel were aged under high vacuum for 1 hour at temperatures ranging from 427 to 621 °C. The samples were structurally and magnetically characterized using X-ray diffraction, microhardness testing, magnetization measurements, and Mössbauer spectroscopy. The results indicated that the solubilized material consists predominantly of martensite, with minor amounts of austenite and niobium carbide. Aging above 566 °C promoted austenite reversion, while the proportion of carbides remained relatively constant. Both microhardness and saturation magnetization varied with aging temperature, reaching a maximum at 455 °C. These peaks are attributed to the precipitation of intermetallic nanocompounds. Above this temperature, an inverse correlation was observed between microhardness and saturation magnetization and the amount of reverted austenite. Regardless of the aging temperature, coercivity and magnetic remanence were not significantly affected.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Magnetic Properties and Applications · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
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