Microstructural dependence of tribological properties of Ti-6Al-4V ELI alloy after slide burnishing / shot peening and low-temperature gas nitriding

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-02-18 DOI:10.1016/j.surfcoat.2025.131941

Daniel Toboła , Puneet Chandran , Jerzy Morgiel , Łukasz Maj , Cezary Drenda , Katarzyna Korzyńska , Aneta Łętocha

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Abstract

Ti-6Al-4V ELI alloy was subjected to different types of sequential, mechanical and thermochemical pre-treatments. Turning, slide burnishing and two variants of shot peening were performed on the heat treated samples prior to low temperature gas nitriding. Subsequently, all the samples modified in this way were subjected to a microstructure characterization as well as assessment of hardness and sliding wear properties. Scanning electron microscopy analysis revealed the samples which have undergone slide burnishing and shot peening exhibited a modified near surface microstructure with the formation of burnishing affected zone (BAZ) and shot peening affected zone (SPAZ) which extended the wear resistance of the alloy. Further, TEM observations indicated the formation of a thin amorphous TiN ‘tribo-layer’ above these zones. Finally, as a consequence of the shape and size of particles within BAZ and SPAZ combined with the tribo layer led to the enhancement of tribological and mechanical properties of titanium alloys.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.