Internal friction in martensitic carbon steels

被引：15

作者：

Hoyos, J. J. ^{[1
]}

Ghilarducci, A. A. ^{[2
]}

Salva, H. R. ^{[2
]}

Chaves, C. A. ^{[1
]}

Velez, J. M. ^{[1
]}

机构：

[1] Univ Nacl Colombia, Grp Ciencia & Tecnol Mat, Medellin, Colombia

[2] Univ Nacl Cuyo, Ctr Atom Bariloche, Comis Nacl Energia Atom, Inst Balseiro,Consejo Nacl Invest Cient & Tecnol, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 521-22卷

关键词：

Mechanical spectroscopy; Carbon steel; Tempering;

D O I：

10.1016/j.msea.2008.09.088

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper proposes relationships between the internal friction and the microstructure of two steels containing 0.626 and 0.71 wt.% carbon. The steels were annealed at 1093 K for 5 min, quenched into water and tempered for 10 min at 423, 573 and 723 K. internal friction was measured by using a forced vibration pendulum, in a temperature range from 100 to 450 K. The internal friction spectrum is decomposed into four peaks: PI at 215 K, P2 at 235 K, P3 at 260 K and P4 at 380 K for 3 Hz. Peak P1 is attributed to the interactions between dislocations and carbon atoms. Peak P2 is related to the interaction between dislocations and carbide. Peak P3 is related to the generations of kink - pairs along edge dislocations. Peak P4 is attributed to epsilon carbide precipitation. (C) 2009 Published by Elsevier B.V.

引用

页码：347 / 350

页数：4

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