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Annealing texture and microstructure evolution in titanium during grain growth in an external magnetic field

D. A. Molodov, C. Bollmann, P. J. Konijnenberg, L. A. Barrales-Mora, V. Mohles

Materials Transactions, 48, 2800-2808, (2007)

DOI: 10.2320/matertrans.MI200701

Download: BibTEX

The impact of a magnetic field (17T) on texture and microstructure evolution in cold rolled (75%) commercially pure titanium was investigated. The specifically oriented titanium sheet specimens were heat treated at 1023 K in a magnetic field of 17 T for 60, 120, 180 and 240 minutes. X-ray diffraction and EBSD measurements were utilized to characterize the crystallographic texture and the grain microstructure. The magnetic annealing resulted in an asymmetry of the two major texture components that constantly increased with annealing time. This effect is attributed to a magnetic driving force for grain growth arising from the anisotropic magnetic susceptibility of titanium. Complementary computer simulations of 2D grain growth were employed to analyze the effect of a magnetic field on texture and microstruture evolution. EBSD measurements as well as the computer simulations revealed that a magnetic field affects the grain growth kinetics. Grains with energetically preferred orientations grow faster and their fraction becomes larger than the fraction of more slowly growing grains with disfavored orientations.

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{"type":"article", "name":"d.a.molodov20079", "author":"D. A. Molodov and C. Bollmann and P. J. Konijnenberg and L. A. Barrales-Mora and V. Mohles", "title":"Annealing texture and microstructure evolution in titanium during grain growth in an external magnetic field", "journal":"Materials Transactions", "volume":"48", "OPTnumber":"11", "OPTmonth":"9", "year":"2007", "OPTpages":"2800-2808", "OPTnote":"", "OPTkey":"grain growth; magnetic annealing; titanium; magnetic anisotropy", "DOI":"10.2320/matertrans.MI200701"}
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