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

被引：2
|
作者：
Pinkas, M. [1 ]
Moshka, O. [2 ]
Okavi, S. [2 ]
Shmuelevitsh, M. [1 ]
Gelbstein, Y. [2 ]
Froumin, N. [2 ,3 ]
Meshi, L. [2 ,3 ]
机构：
[1] Nucl Res Ctr Negev, IL-84100 Beer Sheva, Israel
[2] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel
[3] Ben Gurion Univ Negev, Ilse Katz Inst Nanoscale Sci & Technol, IL-84105 Beer Sheva, Israel
来源：
JOURNAL OF MATERIALS SCIENCE | 2015年 / 50卷 / 23期
关键词：
AL-CU ALLOYS; PRECIPITATION REACTIONS; PHASE CHEMISTRY; STAINLESS-STEEL; BEHAVIOR; COLD;
D O I：
10.1007/s10853-015-9336-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 similar to 17 mu V/K following 3 h of aging at 510 A degrees 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.
引用
收藏
页码：7698 / 7704
页数：7
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