Allowance for Internal Microstresses and Texture in Evaluation of Residual Stresses in Cold-Drawn Steel Wires with Micromechanical Models

Abstract:

Article Preview

Under consideration is an allowance for internal grain-scaled stresses in the evaluation of residual macroscopic stress in highly textured polycrystals. The grain-scaled stresses have been evaluated with two micromechanical models: (a) a simplified model developed for a very strong <110> fiber texture and suggesting the corresponding peculiarity of slip pattern in constitutive crystals, and (b) a full-constraint model allowing for accommodation nature of the multi-slip pattern in these crystals. Both models satisfactorily predict the position and relative intensity of the nonlinearities of d{hkl}-sin2y curve. The former model, by treating magnitude of grain-scaled stresses as a fitting parameter, provides better correspondence to experimental data. The latter model, free of fitting parameters, overestimates the grain-scaled stresses, and, consequently, the oscillations of d{hkl}-sin2y curve.

Info:

Periodical:

Materials Science Forum (Volumes 495-497)

Edited by:

Paul Van Houtte and Leo Kestens

Pages:

1505-1510

DOI:

10.4028/www.scientific.net/MSF.495-497.1505

Citation:

N. Y. Zolotorevsky and A.A. Zisman, "Allowance for Internal Microstresses and Texture in Evaluation of Residual Stresses in Cold-Drawn Steel Wires with Micromechanical Models ", Materials Science Forum, Vols. 495-497, pp. 1505-1510, 2005

Online since:

September 2005

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.