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


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
Issue number23
StatePublished - 29 Dec 2015
Externally publishedYes

Bibliographical note

Funding Information:
This study was supported by the joint IAEC-UPBC Pazy foundation, Grant No. 151. The authors express their gratitude to Mr. S. Levi, Mr. Y. Alon, Mr. M. Amos, Mr. O. Omasi, and Mr. Z. Foxman for their technical assistance.

Publisher Copyright:
© 2015, Springer Science+Business Media New York.


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