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Characterization of Cup Earing in Tin Mill Product by X-Ray Diffraction

Published online by Cambridge University Press:  02 July 2020

K. C Liao  and
W.C. Swartz
K. C Liao
Affiliation:
Technical Center, National Steel Corp., Trenton, MI48183
W.C. Swartz
Affiliation:
QA department, Midwest Steel Division, National Steel Corp., Portage, IN46368
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Extract

X-ray diffraction (XRD) techniques can readily be utilized for the characterization of textures in crystalline materials. The advantages of XRD techniques are: 1) the test is nondestructive, 2) samples can easily be prepared, and 3) data can be collected and analyzed quickly.

Three low-C steel tin mill coils were manufactured during a mill trial which was conducted to optimize the processing parameters necessary for the production of material with low cup earing behavior. The processing parameters evaluated included hot mill conditions (roughing, finishing and coiling temperatures), cold rolling conditions (during first and second cold reduction), and continuous annealing conditions (line speed and strip temperature). Samples A, B, and C were secured from the coil center-width position of each coil, respectively, and were analyzed via XRD.

Properties such as normal anisotropy (r bar) and planar anisotropy (Δ r), have been correlated with an X-ray Intensity Ratio (XIR) at the Technical Center of National Steel.

Type
Metals and Alloys
Information
Microscopy and Microanalysis , Volume 5 , Issue S2: Proceedings: Microscopy & Microanalysis '99, Microscopy Society of America 57th Annual Meeting, Microbeam Analysis Society 33rd Annual Meeting, Portland, Oregon August 1-5, 1999 , August 1999 , pp. 880 - 881
Copyright
Copyright © Microscopy Society of America

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