Growth Rate of Secondary Recrystallized Grain in Molybdenum Sheet.
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- Fujii Tadayuki
- National Research Institute for Metals
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- Kamihira Kazushige
- National Research Institute for Metals
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- Honda Kinichi
- National Research Institute for Metals
Bibliographic Information
- Other Title
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- Mo板の2次再結晶粒成長速度について
- Moバン ノ 2ジ サイケッショウリュウ セイチョウ ソクド ニ ツイテ
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Abstract
The growth kinetics of secondary recrystallized grains with specific orientations in the 90% hot rolled molybdenum sheets doped with CaO and MgO were investigated. Specific grains which are developed exclusively during secondary recrystallization in straight-and cross-rolled sheets have two kinds of orientaions with near {112}<111> and {335}<556>, and near {123}<121> and {126}<10, 81> respectively. The activation energies for the growth of secondary recrystallized grains with specific orientations were estimated to be 69-78 kcal/mol in the temperature range 1900-2200°C. The temperature dependence of the grain growth rate G was described by G=3.0×104 exp (-73000/RT) cm sec-1 for the {112}<111> orientation and G=5.4×103 exp (-70000/RT)cm sec-1 for the {123}<121> orientation. Moreover, the growth rates of secondary recrystallized grain are closely related to the crystallographic orientation relation between secondary and primary recrystallized grains, and the size of grains obtained for primary recrystallized sheets as results of rolling procedures.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 43 (7), 879-884, 1996
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390282681284038912
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- NII Article ID
- 10002012609
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 4004688
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed