Zener Relaxation Peak in an Fe-Cr-Al Alloy
ZHOU Zheng-Cun, CHENG He-Fa, GONG Chen-Li, WEI Jian-Ning, HAN Fu-Sheng
Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
Zener Relaxation Peak in an Fe-Cr-Al Alloy
ZHOU Zheng-Cun;CHENG He-Fa;GONG Chen-Li;WEI Jian-Ning;HAN Fu-Sheng
Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
关键词 ：
62.40.+i
Abstract ： We have studied the temperature spectra of internal friction and relative dynamic modulus of the Fe-(25 wt.%)Cr-(5 wt.%)Al alloy with different grain sizes. It is found that a peak appears in the internal friction-temperature plot at about 550 °C. The peak is of a stable relaxation and is reversible, which occurs not only during heating, but also during cooling. Its activation energy is 2.5 (± 0.15) eV in terms of Arrhenius relation. In addition, the peak is not obvious in the specimens with smaller grain size. It is suggested that the peak originates from Zener relaxation.
Key words ：
62.40.+i
出版日期: 2002-11-01
:
62.40.+i
(Anelasticity, internal friction, stress relaxation, and mechanical resonances)
引用本文:
ZHOU Zheng-Cun;CHENG He-Fa;GONG Chen-Li;WEI Jian-Ning;HAN Fu-Sheng. Zener Relaxation Peak in an Fe-Cr-Al Alloy[J]. 中国物理快报, 2002, 19(11): 1660-1662.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I11/1660
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2002, Vol. 19 
