Table of Contents
Textures and Microstructures
Volume 8 (1988) –9
http://dx.doi.org/10.1155/TSM.8-9.611

Texture Dependent Young's Modulus in Austenitic Cladding

Kraftwerk Union, Hammerbacher Str 12 & 14, PF 3220, Erlangen D-8520, Germany

Received 17 July 1982; Accepted 13 August 1987

Copyright © 1988 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In Austenitic claddings of pressure vessel steel columnar grains with a 100-fiber axis oriented perpendicular to the surface have been previously observed. The fiber axis is parallel to the steepest temperature gradient. Since high temperature gradients also exist in the plane of cladding, preferred orientation should be found there.

This was proved with {111}- and {220}-pole figures taken of the cladding in addition to {200}-pole figures. From these pole figures it could be concluded that the cladding has a {100} 110-texture. The sharpness of the texture decreases from the surface of the cladding toward the base material.

Low values of Young's modulus measured in the cladding could be explained by comparing the texture with single crystal data of Young's modulus of Ni.