低サイクル疲労を受けるアルミニウム鋳造合金の三次元き裂発生挙動

Material type: 文書・図像類

Author: 桑水流, 理ほか

Publisher: 一般社団法人軽金属学会

Publication date: 2014-11

Material Format: Digital

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Note (General)：: The crack initiation mechanism of cast aluminum alloy was addressed to quantitatively evaluate the fatigue strength. We employed the synchrotron radia...

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Material Type: 文書・図像類
Title: 低サイクル疲労を受けるアルミニウム鋳造合金の三次元き裂発生挙動
Author/Editor: 桑水流, 理
松村, 圭悟
アギアルデソウザ, ヴィニシウス
小林, 正和
戸田, 裕之
Author Heading: 桑水流, 理
松村, 圭悟
アギアルデソウザ, ヴィニシウス
小林, 正和
戸田, 裕之
Publication, Distribution, etc.: 一般社団法人軽金属学会
Publication Date: 2014-11
Publication Date (W3CDTF): 2014-11
Periodical title: 軽金属
No. or year of volume/issue: 64 11
Volume: 64
Issue: 11
Pages: 570-575
Text Language Code: jpn
Subject Heading: aluminum alloy
casting defect
fatigue
cracking
X-ray computed tomography
Target Audience: 一般
Note (General): The crack initiation mechanism of cast aluminum alloy was addressed to quantitatively evaluate the fatigue strength. We employed the synchrotron radiation microtomography to visualize the three-dimensional damages around pores and silicon particles. Two types of specimens underwent a low-cycle fatigue test. The temperature of solution treatment was different, and it yielded a difference in the shape, size and distribution of silicon particles. After a certain cycles of fatigue, a catastrophic damage around many silicon particles occurred, and they connected to each other so as to form a crack especially within the high stressed region around a relatively large pore. The scanning electron microscopy after the test showed that the type of damage was the breakage of long-shaped silicon particles or the aluminum–silicon interface debonding of round silicon particles. The high temperature solution treatment facilitated the interface debonding by the enlargement of silicon particles.
Access Restrictions: 限定公開
Related Material (DOI): 10.2464/jilm.64.570
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ