{"title":"Influence of ultrasonic-assisted abrasive peening treatment on Ti-6Al-4V and OFHC Cu alloys","authors":"","doi":"10.1016/j.surfcoat.2024.131317","DOIUrl":null,"url":null,"abstract":"<div><p>Numerous peening techniques exist can effectively modify the sample surface, although at the expense of severe surface damage and high capital investment. Ultrasonic-assisted abrasive peening (UAP) is a superior option that can peen the surface with minimal deterioration using a basic probe sonicator. In this paper, the influence of UAP parameters (i.e., beaker size and fluid volume, power, abrasive concentration, and time) on the surface integrity of Ti-6Al-4V and OFHC Cu was studied experimentally. The process is capable of inducing significant compressive residual stress at around 84 % and 280 % of yield strength in Ti-6Al-4V and OFHC Cu, respectively. The study examined the change in surface roughness (ΔR<sub>a</sub>), ΔR<sub>a</sub> = roughness before - roughness after peening. As peening intensities increase, ΔR<sub>a</sub> reaches +7 nm, showing a surface finish in Ti-6Al-4V. The dislocations density calculated from the Williamson-Hall equation exhibited a 20 and 4.5-fold augmentation in peened Ti-6Al-4V and OFHC Cu in comparison to their un-peened state. EBSD analysis revealed a 28 % and 40 % reduction in grain size in Ti-6Al-4V and OFHC Cu after peening. This work validates the efficacy of the proposed UAP technique and supports the selection of optimized UAP process parameters.</p></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface & Coatings Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0257897224009484","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
引用次数: 0
Abstract
Numerous peening techniques exist can effectively modify the sample surface, although at the expense of severe surface damage and high capital investment. Ultrasonic-assisted abrasive peening (UAP) is a superior option that can peen the surface with minimal deterioration using a basic probe sonicator. In this paper, the influence of UAP parameters (i.e., beaker size and fluid volume, power, abrasive concentration, and time) on the surface integrity of Ti-6Al-4V and OFHC Cu was studied experimentally. The process is capable of inducing significant compressive residual stress at around 84 % and 280 % of yield strength in Ti-6Al-4V and OFHC Cu, respectively. The study examined the change in surface roughness (ΔRa), ΔRa = roughness before - roughness after peening. As peening intensities increase, ΔRa reaches +7 nm, showing a surface finish in Ti-6Al-4V. The dislocations density calculated from the Williamson-Hall equation exhibited a 20 and 4.5-fold augmentation in peened Ti-6Al-4V and OFHC Cu in comparison to their un-peened state. EBSD analysis revealed a 28 % and 40 % reduction in grain size in Ti-6Al-4V and OFHC Cu after peening. This work validates the efficacy of the proposed UAP technique and supports the selection of optimized UAP process parameters.
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.