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The modification of corrosion resistance of 17-4PH stainless steel by cutting process

机译：17-4PH不锈钢切削加工的耐蚀性改进

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摘要

It is well-known that taking high-speed dry cuffing as the final process of manufacture is a new kind of green manufacturing technology. However, the service performance of the machined components must be evaluated before applying this new technique to industry widely. As a kind of precipitation hardening stainless steel, the corrosion resistance is an important factor in the application of 17-4PH stainless steel. In this work, after confirming the internal association between the surface integrity characteristics and the corrosion resistance, the effects of cutting parameters on the surface integrity and corrosion resistance were revealed. It was found that the thicker oxide film, induced by the plastic deformation and high cutting temperature, on the machined surfaces was beneficial to the corrosion resistance, while the rough machined surface could destroy the corrosion resistance. Both of the cutting speed and the feed rate could affect the corrosion resistance by changing the surface integrity. Although the rough surface showed an adverse impact, the face-milled surfaces may show more excellent corrosion resistance than the polished ones by optimizing the cutting parameters.
机译：众所周知，将高速干式袖口作为最终制造过程是一种新型的绿色制造技术。但是，在将该新技术广泛应用于工业之前，必须先评估机加工部件的服务性能。作为一种沉淀硬化不锈钢，耐蚀性是17-4PH不锈钢应用中的重要因素。在这项工作中，在确认了表面完整性特征和耐腐蚀性之间的内在联系之后，揭示了切削参数对表面完整性和耐腐蚀性的影响。结果发现，由于塑性变形和较高的切削温度引起的，较厚的氧化膜有利于耐蚀性，而粗糙的加工表面会破坏耐蚀性。切削速度和进给速度都可能通过改变表面完整性来影响耐腐蚀性。尽管粗糙的表面显示出不利的影响，但通过优化切削参数，端面铣削的表面可能显示出比抛光表面更优异的耐腐蚀性。

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  • 来源
    《Journal of Manufacturing Processes》 |2020年第1期|447-455|共9页
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  • 作者单位

    Shandong Univ Ctr Adv Jet Engn Technol CaJET Sch Mech Engn 17923 Jingshi Rd Jinan 250061 Peoples R China|Shandong Univ Minist Educ Key Lab High Efficiency & Clean Mech Manufacture Jinan Peoples R China;

    China Natl Heavy Duty Truck Grp Co Ltd Jinan Power Co Ltd Jinan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Surface integrity; Corrosion resistance; Face milling; 17-4PH stainless steel;

    机译：表面完整性;耐腐蚀性能;平面铣削;17-4PH不锈钢;

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