Evaluation of Static and Fatigue Strength Characteristics for Thermal Sprayed WC-Co Materials by Indentation Method
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- NAKANISHI Kiminori
- 青山学院大学大学院理工学研究科
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- SAKAUE Kenichi
- Department of Mechanical Engineering, Aoyama Gakuin University
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- OGAWA Takeshi
- Department of Mechanical Engineering, Aoyama Gakuin University
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- KOBAYASHI Yoshifumi
- トーカロ(株)
Bibliographic Information
- Other Title
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- インデンテーション法によるWC-Co溶射材の静的および疲労強度特性評価
- インデンテーションホウ ニ ヨル WC Co ヨウシャザイ ノ セイテキ オヨビ ヒロウ キョウド トクセイ ヒョウカ
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Abstract
Static and cyclic indentation tests were performed on the surface and the cross-section of thermal sprayed WC-Co materials. Micro indentation tests revealed that the mechanical properties on the surface are different from those on the cross-section. Also, the static strength on the surface is lower than that on the cross section. Under the static indentation tests, the cracks on the surface formed a ring crack around the impression. On the other hand, the crack on the cross-section grew in the direction perpendicular to the sprayed direction. The results of cyclic indentation tests showed that the cyclic number for the crack initiation decreased with increasing the maximum surface stress. The fatigue strength on the cross section was slightly higher than on the surface. These results mean that thermal-sprayed WC materials clearly have cyclic fatigue behavior and remarkable anisotropy.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 76 (767), 902-907, 2010
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282679455508480
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- NII Article ID
- 110007685191
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- NII Book ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL BIB ID
- 10784016
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
