顺序预处理对Vancron 40工具钢组织和摩擦力学性能的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-08-25 DOI:10.1016/j.wear.2025.206307

Daniel Toboła , Cezary Drenda , Puneet Chandran , Jerzy Morgiel , Marcin Kot , Adelajda Polkowska , Witold Brostow

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引用次数: 0

摘要

为了优化其耐磨性，研究了经过选定多级顺序表面处理的Vancron 40工具钢的摩擦力学性能。表面改性包括：热处理、机械加工（磨削/车削/滑动抛光）和气体氮化。经车削-抛光-渗氮（TBN）顺序处理的材料试样磨损和动态摩擦最小。显微组织观察证实，氮化层内的次表面塑性变形（SSPD）是提高耐磨性的主要因素。三阶段处理的基片的比磨损率为4.1 mm3/Nm，下降了15%，而球的比磨损率为0.38 mm3/Nm，即与传统的磨削氮化（GN）相比增加了三倍。动摩擦系数为0.57，比原试验降低了22%。改善的摩擦力学性能反映了在氮化之前应用的机械加工程序的协同效应。

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Influence of sequential pre-processing on the structural and tribo-mechanical properties of Vancron 40 tool steel

Tribo-mechanical properties of Vancron 40 tool steel subjected to selected-multistage sequential surface treatments were investigated with the aim to optimize its wear resistance. The surface modifications included: heat treatment, mechanical processing (grinding/turning/slide burnishing) and gas nitriding. The lowest of both sample wear and dynamic friction were obtained for the materials subjected to sequential turning-burnishing-nitriding (TBN) processes. Microstructural observations confirmed that the subsurface plastic deformation (SSPD) within the nitrided layer was the main contributor to wear resistance. The specific wear rate for three-stage processed substrates was 4.1 mm³/Nm, a 15 % decrease, whereas the specific wear rate of the ball was 0.38 mm³/Nm, i.e. a three-fold increase as compared with conventional grinding-nitriding (GN). The dynamic friction was 0.57, hence 22 % lower than before. The improved tribo-mechanical properties reflect the synergy effect of mechanical processing procedures applied prior to nitriding.

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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.