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首页> 外文会议>Annual Meeting Exhibition of The Minerals, Metals Materials Society >Comparative Assessment of the Fracture Behaviour of API-5L X65 and Micro-alloyed Steels in E80 Simulated Fuel Ethanol Environment
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Comparative Assessment of the Fracture Behaviour of API-5L X65 and Micro-alloyed Steels in E80 Simulated Fuel Ethanol Environment

机译：E80模拟燃料乙醇环境中API-5L X65和微合金钢骨折行为的比较评估

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Monotonic J-integral tests were carried out on API-5L X65 steel and micro-alloyed steel (MAS) in E80 simulated fuel grade ethanol (SFGE) environment using three-point bend specimens. A ramp rate of 10~(-04) mm/s was used for loading in each sequence so as to enhance stress corrosion cracking (SCC) influence if any. The influence of the SFGE environment on tearing resistance and fracture toughness of the steels was studied. Both steels exhibited decrease in fracture toughness in E80 in relation to air. The decrease in fracture toughness may be due to anodic dissolution at the crack tip. Ductile tearing resistance of the steels increased in E80 due to decline in toughness property. In comparison with X65 steel, MAS showed better fracture properties.
机译：在E80的API-5L X65钢和微合金钢（MAS）上进行单调J-Integryal试验使用三点弯曲标本在E80模拟燃料级乙醇（SFGE）环境中进行。在每种序列中使用10〜（-04）mm / s的升压速率，以便提高应力腐蚀裂纹（SCC）影响，如果有的话。研究了SFGE环境对钢的撕裂性和裂缝韧性的影响。两个钢在E80中表现出与空气有关的裂缝韧性。断裂韧性的降低可能是由于裂纹尖端处的阳极溶解。由于韧性性能下降，钢的韧性撕裂抗性耐高采烈地增加了E80。与X65钢相比，MAS显示出更好的骨折性能。

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