Deformation and Fracture Mechanism of Consolidated Fe-Cu Alloy from Rapidly Solidified Powder
Deformation and Fracture Mechanism of Consolidated Fe-Cu Alloy from Rapidly Solidified Powder
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快凝粉末固结铁铜合金的变形与断裂机理
DOI：
10.2320/matertrans.43.301
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发表时间：
2002
影响因子：
1.2
通讯作者：
K. Halada
中科院分区：
文献类型：
--
作者：
H. Kakisawa;K. Minagawa;Minoru Otaguchi;K. Halada
研究了凝固态Fe-Cu合金在拉伸过程中的变形和断裂机制。采用孔型轧制法对铜过饱和的Fe-Cu快速凝固粉末进行了压制。改变铜含量、轧制温度和热暴露条件以获得具有各种显微组织的样品。对试样进行拉伸试验;暂停部分试验，观察加载过程中的微观结构变化。根据应力-应变曲线和SEM观察，对拉伸行为和显微组织进行了关联。应力-应变曲线的差异是从加载过程中微观组织形态的变化和随之而来的微断裂行为的变化来解释的。
Deformation and fracture mechanism during tensile testing is investigated for consolidated Fe–Cu alloy. Fe–Cu rapidly solidified powder in which copper is supersaturated is consolidated using groove rolling. Copper content, rolling temperature, and heat exposure condition are varied to obtain samples with various microstructures. The samples are subjected to tensile testing; some tests are suspended to observe the microstructure change during loading. The tensile behavior and the microstructure are correlated based on the obtained stress-strain curves and SEM observation. The difference of the stress-strain curve is explained from the morphology change of the microstructures and the following change of the microfracture behavior during loading.