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首页> 外文会议>American Society of Mechanical Engineers(ASME) Rail Transportation Division Fall Conference; 20070911-12; Chicago,IL(US) >RECENT RESEARCH TO IMPROVE WHEEL AND AXLE COMPOSITION, PROPERTIES AND DESIGNS
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RECENT RESEARCH TO IMPROVE WHEEL AND AXLE COMPOSITION, PROPERTIES AND DESIGNS

机译：改善车轮和车轴组成，性能和设计的最新研究

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摘要

This paper describes research efforts by a North American railroad wheel and axle manufacturer to improve steel chemistry, cleanliness, and properties for improved component service performance. The authors describe extensive work to improve steel cleanliness in the melting process. Also they review attempts to correlate ultrasonic testing data with microcleanliness test results, and detail subsequent work to determine steel cleanliness using the Advanced Steel Cleanliness Assessment Technique (ASCAT), which is being developed by a university and a supplier. Emphasis is placed on determining the type, number and size of discontinuities within the steel. Additionally, efforts to improve mechanical properties of microalloyed axles are reviewed along with microstructural details relevant to the work. The role of vanadium, molybdenum, aluminum, and other elements, on axle structure and properties is discussed. A new axle design, with significantly larger body diameter, is described and finite element analysis (FEA) results for the design are presented.
机译：本文介绍了北美铁路轮轴制造商的研究工作，以改善钢的化学性质，清洁度和性能，以改善组件的服务性能。作者描述了为提高钢在熔化过程中的清洁度所做的大量工作。他们还审查了将超声波测试数据与微观清洁度测试结果相关联的尝试，并详细介绍了由大学和供应商开发的高级钢铁清洁度评估技术（ASCAT），以确定钢铁清洁度的后续工作。重点放在确定钢中不连续的类型，数量和大小。另外，对改善微合金车轴机械性能的努力以及与工作有关的微结构细节也进行了审查。讨论了钒，钼，铝和其他元素对车轴结构和性能的影响。描述了一种新的车轴设计，该车体的直径明显更大，并给出了该设计的有限元分析（FEA）结果。

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