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    MO Dong-qiang, WANG Fei-hua, LIN De-ping, LIAN shao-ling. FAILURE ANALYSIS OF EXHAUST VALVE FATIGUE FRACTURE CAUSED BY THERMAL OVERSTRESS[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2006, 42(12): 631-633.
    Citation: MO Dong-qiang, WANG Fei-hua, LIN De-ping, LIAN shao-ling. FAILURE ANALYSIS OF EXHAUST VALVE FATIGUE FRACTURE CAUSED BY THERMAL OVERSTRESS[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2006, 42(12): 631-633.
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    FAILURE ANALYSIS OF EXHAUST VALVE FATIGUE FRACTURE CAUSED BY THERMAL OVERSTRESS

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      • Abstract
    • The fracture of 21-4N exhaust valve was analyzed by macro examination and micro-analysis. The results showed that the fracture was related to the lamellar precipitate, which effected the valve mechanical performance the results showed that 21-4N exhaust valve fatigue fracture was caused by thermal overstress.
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