AlNをインヒビターとしたFe-3%Si合金の2次再結晶

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タイトル別名
  • Secondary Recrystallization in Fe-3%Si Containing AlN as Inhibitor
  • AlN オ インヒビター ト シタ Fe 3パーセント Si ゴウキン ノ 2

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抄録

Fe-3%Si containing AlN, which was cold-rolled with 84.7% reduction and primarily recrystallized, was heated with the heating rate of 15°C/h in the 85%H2-N2 (condition A) or in the 5%H2-N2 atmosphere (condition B) up to a temperature of 1200°C and extracted from 925°C at intervals of 50°C. The secondarily recrystallized grains were observed at 975°C in condition A, while no secondarily recrystallized grains were found in condition B at this temperature. The secondary recrystallization was completed at 1025°C in both conditions. No (101)[010] oriented secondary grains were observed in specimen A extracted at 975°C. However, the main secondarily recrystallized texture at 1025°C was (101)[010] in both conditions. The scatter from the ideal (101)[010] orientation was smaller and the grain size was larger in B condition compared with condition A at this stage. However, the scatter in condition B was larger compared with the one processed from the primarily recrystallized specimen containing both AlN and MnS as inhibitors.<BR>These results are discussed from the viewpoint of grain boundary migration characteristics of coincidence boundaries and the following conclusion were derived.<BR>(1) In the weaker inhibitor condition, selective migration of other than Σ9 type boundaries occurs in the lower temperature range and selective migration of Σ9 type boundaries mainly occurs over a higher temperature range.<BR>(2) In the stronger inhibitor condition, selective migration of grain boundaries initiates over the higher temperature range and they are mainly Σ9 type boundaries.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 57 (4), 368-376, 1993

    公益社団法人 日本金属学会

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