Fatigue crack growth tests were carried out using high manganese cast steel under constant amplitude loading. Average crystal grain sizes of the material are 200㎛ and 1000㎛. For this material, △Kth is about 8MPa√m which is quiet large as compa...
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https://www.riss.kr/link?id=A3002802
2001
Korean
500
학술저널
71-80(10쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Fatigue crack growth tests were carried out using high manganese cast steel under constant amplitude loading. Average crystal grain sizes of the material are 200㎛ and 1000㎛. For this material, △Kth is about 8MPa√m which is quiet large as compa...
Fatigue crack growth tests were carried out using high manganese cast steel under constant amplitude loading. Average crystal grain sizes of the material are 200㎛ and 1000㎛. For this material, △Kth is about 8MPa√m which is quiet large as compared to the general structural steels and the crack growth rate is lower than the general structural steels especially in the low △K regsion. The reason of this behavior is crack closure due to fracture surface roughness and fretting oxide. The relationship between da/dN and the △Keff was represented by narrow band regardless of the stress ratio.
목차 (Table of Contents)
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