Ultra-High Cycle Fatigue Properties in Zr<sub>55</sub>Al<sub>10</sub>Ni<sub>5</sub>Cu<sub>30</sub> Metallic Glassy Alloy Using Ultrasonic Fatigue Testing Machine
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- YAMAURA Shin-ichi
- Institute for Materials Research, Tohoku Univ.
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- FUJITA Kazutaka
- Dept. Mech. Eng., Ube National College of Technology
書誌事項
- タイトル別名
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- 超音波疲労試験機を用いたZr<sub><font size="-1">55</font></sub>Al<sub><font size="-1">10</font></sub>Ni<sub><font size="-1">5</font></sub>Cu<sub><font size="-1">30</font></sub>金属ガラスの超高サイクル疲労特性
- Translated Paper : Ultra-High Cycle Fatigue Properties in Zr₅₅Al₁₀Ni₅Cu₃₀ Metallic Glassy Alloy Using Ultrasonic Fatigue Testing Machine
- 超音波疲労試験機を用いたZr₅₅Al₁₀Ni₅Cu₃₀金属ガラスの超高サイクル疲労特性
- チョウオンパ ヒロウ シケンキ オ モチイタ Zr ₅ ₅ Al ₁ ₀ Ni ₅ Cu ₃ ₀ キンゾク ガラス ノ チョウコウサイクル ヒロウ トクセイ
- Ultra-High Cycle Fatigue Properties in Zr55Al10Ni5Cu30 Metallic Glassy Alloy Using Ultrasonic Fatigue Testing Machine
- English version of the paper published in “Journal of the Society of Materials Science, Japan, 62 (3) : 191-196 (2013)”
- English version of the paper published in “Journal of the Society of Materials Science, Japan, 62 (3) : 191-196 (2013)”
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説明
In this work, the ultra-high cycle fatigue behavior of Zr55Al10Ni5Cu30 metallic glass was investigated by using an ultrasonic fatigue testing method. Test alloy rods with a diameter of 8mm were prepared by tilt-casting with a copper mold. Test specimens were machined to hourglass shape (the minimum diameter ; 2.0mm), and then manually polished with polishing paste. They were tested at a frequency of 20kHz under a stress ratio of -1. The fatigue limit (σw) (half a total stress amplitude) and fatigue ratio (σw/σB) of the alloy were 893MPa and 0.53, respectively. Furthermore, no fish-eye like crack-growth morphology was seen on the fracture surfaces. The initiation region of fatigue cracking was always observed on the side surface of the specimens. A viscous-flow fracture region with large dimples between the fatigue crack-growth region and the final unstable fracture region was observed. This peculiar fracture morphology may be due to adiabatic heating of the metallic glass specimens during the fracturing, resulting in transition to supercooled liquid, under extremely high frequency of fatigue stress using ultrasonic loading.
収録刊行物
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- 材料
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材料 63 (6), 473-479, 2014
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390001205443704576
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- NII論文ID
- 130004749906
- 130003367149
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- NII書誌ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BC3sXptFyksLg%3D
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- ISSN
- 18807488
- 05145163
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- 本文言語コード
- ja
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- journal article
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