Identification of Transformation Plasticity Coefficient by Four-Point Bending Tests and Some Data under Pearlite Transformation
نویسندگان
چکیده
منابع مشابه
Identification of Transformation Plasticity Coefficient for Some Steels during Pearlite Transformation and the Dependence on Chemical Composition
1 緒 言 熱処理過程の変態・熱・力学シミュレーションを行うた めには,材料の化学成分に依存する温度,組織,応力/ひ ずみの連成効果を考慮しなければならない.1)~ 4)したがっ て,このような複雑な解析を行うには,多くの材料デー タが必要になる.このために日本材料学会塑性部門委員 会材料データベース研究分科会では,材料特性データベー スMATEQを構築している.5)~ 7)しかし,変態特性に関 するデータは実験が煩雑であることもあって,不足して いるのが現状である.この変態塑性 (transformation plasticity) とは,相変態が生じているとき,その材料の 降伏点以下の応力が加えられた場合でも,大きな塑性ひ ずみが生じることをいう.8)~ 11)この変態塑性ひずみは,熱 処理中に生じる熱ひずみ,変態ひずみと同等以上の大き さになるため,熱処理シミュレーションを行う...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 2003
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.52.1198