Annealing Textures of Cold-Rolled Fe-Si-Al Alloys

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  • 珪素-アルミニウム鉄冷間圧延板の再結晶集合組織
  • ケイソ-アルミニウムテツ レイカン アツエンバン ノ サイケッショウ シュウゴウ ソシキ

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Abstract

Several Fe-Si-Al alloys containing 3 wt.%Si plus Al (including 3 wt.%Si-Fe and 3 wt.%Al-Fe alloys) were prepared by melting in air in an induction furnace. After forging and annealing, they were processed in two cold-rolling operations separated by an intermediate annealing. The following two combinations of the cold-rolling reductions and the annealing conditions were tested: (G) 65% reduction,annealing at 850°C for 1 hr in vacuum, 65% reduction, final annealing at 1050°C for 1 hr in vacuum. (W) 80% reduction, annealing at 1000°C for 1 hr in H2, 80% reduction, final annealing at 1000°C for 2 hrs in H2. The final annealing textures were examined by magnetic torque measurements and by X-ray pole-figure determinations. The following results have been obtained. (1) In all specimens, larger cube/Goss ratio in the final annealing texture was obtained by the W-process. Especially, larger cube/Goss ratio was obtained in alloys containing more than 1.2%Al. (2) The Goss texture was developed by the G-process and the effect of the inclusion inhibition on the sharpness of the Goss texture was not appreciably different in any of the specimens.

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