The cold rolling and primary recrystallisation textures of austenitic stainless steels.
type: CreativeWork
description: A critical review has been made of available literature on the cold rolling and primary recrystallisation textures of f.c.c. and b.c.c. metals and alloys, with later reference to recent work on stainless steels. Using laboratory and commercial alloys a study has been made of factors influencing the cold rolling and primary recrystallisation textures of stainless steels. Preferred orientations have been assessed by X-ray determination of pole figures. The work is supplemented by other techniques - quantitative phase analysis of austenite and martensite, determination of diffraction line profiles, hardness measurements, optical and electron metallography, qualitative identification of carbide phases. The high purity alloys (18%Cr 10%Ni, 18%Cr 12%Ni, 18%Cr 14%Ni, 18%Cr 12%Ni 7%Co and 18%Cr 25%Ni) were examined with particular reference to the role of the martensite transformation in developing primary recrystallisation textures. The first four alloys are metastable, the amount of martensite formed after 90-95% cold rolling increasing from ≈5% for 18%Cr 14%Ni or 18%Cr 12%Ni 7%Co steels to ≈86% for 18%Cr 10%Hi steel, and textures of both martensite and the remaining austenite are the same for each steel. Principal components of the martensite texture are {112} and {111} , with a minor component {001} . The austenite exhibits a normal f.c.c. alloy type texture, {110} + a minor {110} component. The 18%Cr steel recrystallises to mainly {230} and {6,10,1} orientations with considerable spread remaining in the region of {6,8,17} (which is close to {225} ). The other steels recrystallise to a {225} texture. In the metastable alloys, factors influencing development of the annealing textures are the relative amounts of alpha and sigma formed by cold rolling, recovery in both phases, alpha→sigma shear transformation, variant selectivity during the transformation and, finally, competitive growth of favourably oriented nuclei. It is shown that recovery occurs in both phases, its ef…
abstract: A critical review has been made of available literature on the cold rolling and primary recrystallisation textures of f.c.c. and b.c.c. metals and alloys, with later reference to recent work on stainless steels. Using laboratory and commercial alloys a study has been made of factors influencing the cold rolling and primary recrystallisation textures of stainless steels. Preferred orientations have been assessed by X-ray determination of pole figures. The work is supplemented by other techniques - quantitative phase analysis of austenite and martensite, determination of diffraction line profiles, hardness measurements, optical and electron metallography, qualitative identification of carbide phases. The high purity alloys (18%Cr 10%Ni, 18%Cr 12%Ni, 18%Cr 14%Ni, 18%Cr 12%Ni 7%Co and 18%Cr 25%Ni) were examined with particular reference to the role of the martensite transformation in developing primary recrystallisation textures. The first four alloys are metastable, the amount of martensite formed after 90-95% cold rolling increasing from ≈5% for 18%Cr 14%Ni or 18%Cr 12%Ni 7%Co steels to ≈86% for 18%Cr 10%Hi steel, and textures of both martensite and the remaining austenite are the same for each steel. Principal components of the martensite texture are {112} and {111} , with a minor component {001} . The austenite exhibits a normal f.c.c. alloy type texture, {110} + a minor {110} component. The 18%Cr steel recrystallises to mainly {230} and {6,10,1} orientations with considerable spread remaining in the region of {6,8,17} (which is close to {225} ). The other steels recrystallise to a {225} texture. In the metastable alloys, factors influencing development of the annealing textures are the relative amounts of alpha and sigma formed by cold rolling, recovery in both phases, alpha→sigma shear transformation, variant selectivity during the transformation and, finally, competitive growth of favourably oriented nuclei. It is shown that recovery occurs in both phases, its ef…
author: Dickson, Malcolm J.
language: en
date published: 1971
date modified: 2026-07-24T06:31:21Z
provider: Sheffield Hallam University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Sheffield Hallam University (United Kingdom).