Sagar, S P and Kumar, B R and Dobmann, G and Bhattacharya, Dipak Kumar (2005) Magnetic characterization of cold rolled and aged AISI 304 stainless steel. Ndt & E International , 38 (8). pp. 674-681. ISSN 0963-8695

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Abstract

Magnetic easy axis predicted by the orientation distribution of the maximum amplitude of magnetic Barkhausen emission (MBE), which is obtained by magnetization in radial directions from the center of the specimens has been applied to determine the magnetic anisotropy on cold rolled and aged 304 SS in two sets of specimen. The maximum of the MBE has been found to orient along the rolling direction (RD) compared to the transverse direction (TD), indicating the presence of magnetic easy axis along the rolling direction for both sets. The strain induced martensite phase transformation has been determined using X-ray diffraction technique. The orientation distribution function (ODF) analysis has been carried out to obtain the crystallographic texture with cold rolling. ODF analysis revealed the (110) texture as the major. The magnetic anisotropy factor has also been determined with cold deformation and noticed that the strength of magnetic anisotropy decreases above 50% deformation for both the sets. Results have been explained considering two competitive effects, formation of crystallographic texture in the martensite phase and presence of compressive residual stresses along RD during cold rolling. (c) 2005 Elsevier Ltd. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Stainless steel; Cold rolling; Martensite; X-ray diffraction; texture; Residual stress; Barkhausen emission
Subjects:	Microstructure and Characterization
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	20 Mar 2012 10:02
Last Modified:	20 Mar 2012 10:02
URI:	http://cgcri.csircentral.net/id/eprint/1277

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