【摘 要】
：
Different machining processes of mechanical parts can cause surface damage layers with different levels.The surface deformed layer can affect the corrosionb
【机 构】
：
Key Laboratory of Nuclear Materials and Safety Assessment, Liaoning Key Laboratory for Safety and As
【出 处】
：
The 4th International Symposium on Materials and Reliability
论文部分内容阅读
Different machining processes of mechanical parts can cause surface damage layers with different levels.The surface deformed layer can affect the corrosionbehavior and service life of these mechanical parts a lot during the following service process.As a result, it is a key issue for the fabrication of the mechanical parts with long life that the selection of proper machining parameters and the removal of surface damage.The purpose of this study is to study the influence of different turning parameters on thecorrosion behavior of nuclear gradeSA182-304 stainless steel widely used in theadvanced pressured water reactors (PWRs).6 kinds of samples with different surface state are prepared by a lathe with different machining parameters, such as the feed, cutting speed and back engagement of the cutting edge.The high temperature and high pressure immersion test of these samples in the simulated PWR primary watershows that machining processes can affect the microstructure and chemical composition of the formed surface oxide scales a lot.According to the experimental results, the proper machining parameters for the studied SA182-304 are suggested.
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