On the influence of batch-to-batch microstructural variations on tool wear when machining C38 micro-alloyed steel

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-11-10 DOI:10.1016/j.wear.2024.205632

Charlie Salame, Amir Malakizadi, Uta Klement

引用次数: 0

Abstract

Sustainable machining in micro-alloyed carbon steels necessitates a thorough understanding of microstructural variations and their subsequent influence on the machinability of different batches. This research investigates the machinability variation between two batches of a modified pearlitic-ferritic C38 micro-alloyed steel with a similar nominal chemical composition, through correlation of their tool wear responses at different cutting conditions to discrepancies in the microstructure and non-metallic inclusions between both batches. One batch of steel exhibits enhanced machinability for all investigated cutting conditions, showing remarkably different levels of wear development under similar cutting conditions and spiral cutting lengths. The different wear responses are then compared in association with the thermo-mechanical loads and microstructural discrepancies, where the less machinable batch is determined to have a lower ferritic volume fraction, higher hardness, and more abrasive nitrides than the other batch.

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加工 C38 微合金钢时批次间微观结构变化对刀具磨损的影响

要实现微合金碳钢的可持续加工，就必须全面了解微观结构变化及其对不同批次钢材加工性能的影响。本研究通过将不同切削条件下的刀具磨损反应与两批钢之间微观结构和非金属夹杂物的差异相关联，调查了两批化学成分相似的改性珠光体-铁素体 C38 微合金钢之间的加工性差异。其中一批钢在所有研究的切削条件下都表现出更高的可加工性，在类似的切削条件和螺旋切削长度下，磨损发展程度明显不同。然后将不同的磨损反应与热机械载荷和微观结构差异进行比较，结果表明，与另一批次钢材相比，加工性较差的批次钢材具有较低的铁素体体积分数、较高的硬度和较多的氮化物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.