Study of Elastic Moduli of Sintered Low Alloy Steels by Acoustic Pulse Method

Abstract:

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The influence of porosity (P) on Young’s modulus (E) and Poisson’s ratio (υ) of sintered steels produced from four types of steel powders were investigated. The values of E and υ depends mainly on the value of P, and those were a little affected by alloying elements. The relationship between compacting pressure (CP) and P and the relationships between E, υ, and P were described as following equations: P = P1 + P2 exp(- CP / P3), E = E0 (1 - kEP)2, and υ = (υ0 - υsub)(1 - kυP)2 + υsub, where subscript 0 means P = 0, and P1 - 3, kE, kυ and υsub were empirical constants. It was clarified that if powder and sintering temperature is defined, the elastic moduli of sintered steel can be calculated as a function of compacting pressure.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

749-752

DOI:

10.4028/www.scientific.net/MSF.534-536.749

Citation:

N. Hirose et al., "Study of Elastic Moduli of Sintered Low Alloy Steels by Acoustic Pulse Method", Materials Science Forum, Vols. 534-536, pp. 749-752, 2007

Online since:

January 2007

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$35.00

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