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首页> 外文期刊>ISIJ international >Cavitation Erosion and Solid Particle Erosion Behaviour of a Nitrogen Alloyed Austenitic Stainless Steel
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Cavitation Erosion and Solid Particle Erosion Behaviour of a Nitrogen Alloyed Austenitic Stainless Steel

机译：氮合金奥氏体不锈钢的空化腐蚀和固体颗粒腐蚀行为

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摘要

The effect of grain size on solid particle erosion and cavitation erosion of a nitrogen alloyed austenitic stainless steel has been investigated. Heat treatment of the steel at elevated temperatures results in an increase in grain size and thus modification in mechanical properties. Particle erosion tests were performed using an air jet erosion tester. An ultrasonic processor with a stationary specimen was used to investigate the cavitation erosion performance. The cavitation erosion rates were found to increase with the increase in grain size. The particle erosion rate shows no significant change with increase in grain size. The worn surfaces were examined to study the characteristic damage features using scanning electron microscope (SEM). The nitrogen alloyed austenitic stainless steel exhibited superior resistance to cavitation erosion and particle erosion than a 316L stainless steel. The hardness, yield strength and ultimate tensile strength of the steels are related with the erosion resistance.
机译：研究了晶粒尺寸对氮合金奥氏体不锈钢的固体颗粒腐蚀和空化腐蚀的影响。在高温下对钢进行热处理会导致晶粒尺寸增加，从而改变机械性能。使用喷气侵蚀测试仪进行颗粒侵蚀测试。使用带有固定样本的超声处理器来研究气蚀性能。发现空化侵蚀速率随着晶粒尺寸的增加而增加。随颗粒尺寸的增加，颗粒侵蚀率没有明显变化。使用扫描电子显微镜（SEM）检查磨损的表面以研究特征损伤特征。氮合金奥氏体不锈钢比316L不锈钢具有更好的抗气蚀和颗粒腐蚀的能力。钢的硬度，屈服强度和极限抗拉强度与耐蚀性有关。

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