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Title :窒化した圧延鋼の疲労特性と転位組織
Title alternative :Fatigue Properties and Dislocation Structures of Nitrided Rolled Steel
Authors :兼城, 英夫
我那覇, 簾
真喜志, 隆
真壁, 朝敏
Authors alternative :Kaneshiro, Hideo
Ganaha, Ren
Makishi, Takashi
Makabe, Chobin
Issue Date :25-Jan-2001
Abstract :Fatigue properties of the nitrided rolled steel are investigated on the basis of the observations of the substructures produced by nitriding and fatigue. It is found that the fatigue limit of the nitrided rolled specimens is much higher than that of the nitrided annealed ones and the substructures before the nitriding are effective for the improvement of the fatigue strength. The substructure of the rolled steel consists of cells with dislocation clusters within them. By means of nitriding treatment, cell structures and twins appear in the inner part of the compound layer, while uniformly distributed dislocation clusters in the region just below the compound layer and the inner part of the diffusion layer. After fatigue test, most of these substructures are preserved except for the region just below the compound layer where the cell structures due to active dislocation motions were formed.
Type Local :雑誌掲載論文
ISSN :03875008
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/253
Citation :日本機械学会論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A Vol.67 no.653 p.94 -101
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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