The origin of the effect of aging on the thermoelectric power of maraging C250 steel

M. Pinkas, O. Moshka, S. Okavi, M. Shmuelevitsh, Y. Gelbstein, N. Froumin, L. Meshi

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The sensitivity of thermoelectric power (TEP) to the aging condition of maraging C250 steel was investigated. TEP revealed a high sensitivity to the aging process as its value decreased by ~17 μV/K following 3 h of aging at 510 °C. This is a noticeably large change for metallic systems undergoing metallurgical modifications. Using model alloys, we show that the significant change in TEP is mainly due to the depletion of the matrix from the precipitating elements which change the electron density in the Fermi level, as was confirmed by X-ray photoelectron spectroscopy.

Original languageEnglish
Pages (from-to)7698-7704
Number of pages7
JournalJournal of Materials Science
Volume50
Issue number23
DOIs
StatePublished - 29 Dec 2015

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