| Relationship between Low Temperature Toughness and Microstructure in Low Activation Fe-Cr-Mn (W, V) Steel for Fusion Reactors |
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| 作者单位： | Material Science and Engineering School，University of Science and Technology Beijing，Beijing 100083，China |
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| 摘 要： | Fe-Cr-Mnalloys,asthefirstwallmaterialsoffusionreactors,haVemadadVantages(lowcost,goodswellingresistance,lowradioactivity,etc.)comparingwithFe-Cr-NisyStems[l--31.Intherecentyears,manyresearchershavebeengreatlyinterestingintheresearchanddevelopmentoncl...
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Relationship between Low Temperature Toughness and Microstructure in Low Activation Fe-Cr-Mn (W, V) Steel for Fusion Reactors |
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| Benfu Hu,Chengchang Jia. Relationship between Low Temperature Toughness and Microstructure in Low Activation Fe-Cr-Mn (W, V) Steel for Fusion Reactors[J]. Journal of University of Science and Technology Beijing, 1999, 6(2) |
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| Authors: | Benfu Hu Chengchang Jia |
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| Abstract: | Fe-Cr-Mn (W, V) austenite steel was researched in order to supply a theory base for the first wall materials of fusion reactors. Experiments included vacuum melting, forging, annealing, solution treatment, Charpy impact tests and microstructure observation. The results show that the impact value decreases with the test temperature decreasing. In this system, there is ductile/brittle transition. The mechanism of this decrease of the impact value is considered to be due to → transformation in sub-stable austenite steel and stopping overlapping stacking fault by grain boundaries in stable austenite steel. |
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| Keywords: | fusion reactor first wall materials low temperature toughness Fe-Cr-Mn system |
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