This paper investigated the effect of shot peening on the strength and corrosion properties of 6082-T651 aluminium alloy. The microstructure, surface roughness, microhardness, residual stresses, and corrosion behaviour were investigated and compared with those of untreated aluminium alloy. Cracks and delaminations in the surface layer could only be seen on the treated specimens at a working pressure of 4 bar and 8 bar, while no such effect was observed at a working pressure of 1.6 bar. The surface roughness was increased more than 15 times after shot peening at a working pressure of 8 bar. Shot peening resulted in an increase in microhardness of 27% and a deeper layer with higher compressive residual stresses compared to the untreated specimens. All treated specimens exhibited improved corrosion resistance with a lower degree of anodic dissolution. The current density of the treated specimen with the lowest surface roughness was more than two-fold lower than that of the untreated specimen.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384055 | PMC |
| http://dx.doi.org/10.3390/ma16144976 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Effect of the Chamber-Filling Ratio in Vibratory Shot Peening on Selected Surface Layer Properties of 30HGSA.
Materials (Basel)
December 2024
Department of Production Engineering, Faculty of Mechanical Engineering, Lublin University of Technology, 36 Nadbystrzycka, 20-618 Lublin, Poland.
This study investigated the influence of the filling ratio of the working chamber and ball diameter in vibratory shot peening (VSP) on select properties of the surface layer. The tested material was 30HGSA steel, which is effectively used in the aviation industry. The following were analyzed: the surface roughness parameters, the shape of the Abbott-Firestone curve, the bearing area ratio Smr, the microhardness distribution, the microhardness on the surface, and the residual stress σ on the surface.
View Article and Find Full Text PDFStudy on the effects of the shot peening intensity on the microstructure, friction and wear properties of high-strength steel.
PLoS One
December 2024
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, China.
The microstructure, hardness, residual stress, and friction and wear properties of 25CrNi2MoV steel with different particle diameters during shot peening strengthening were studied. Studies have shown that a grain refinement layer appeared on the surface of the material after shot peening. The shot peening intensity increased with increasing particle diameter; a greater shot peening intensity corresponded to a greater surface hardness of the material, the maximum hardness was 592 HV0.
View Article and Find Full Text PDFEffect of Dual Shot Peening on Microstructure and Wear Performance of CNT/Al-Cu-Mg Composites.
Materials (Basel)
October 2024
Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris-Saclay, 91405 Paris, France.
This work systematically investigated the effect of dual shot peening (DSP) and conventional shot peening (CSP) on the microstructure, residual stress and wear performance of the CNT/Al-Cu-Mg composites. The results indicated that compared with CSP, DSP effectively reduced surface roughness (Rz) from 31.30 to 12.
View Article and Find Full Text PDFNanoengineering steel's durability: creating gradient nanostructured spheroidal carbides and lath-shaped nano-martensite ultrasonic shot peening.
Nanoscale
November 2024
School of Industrial Engineering, Purdue University, West Lafayette, IN 47906, USA.
Surface nanoengineering can significantly improve the mechanical properties and performance of metals, such as strength, hardness, fatigue, wear resistance, . In this work, we tailored the surface microstructure of GCr15 bearing steel within a thickness of approximately 800 μm using room temperature ultrasonic shot peening (USP) technology. Microstructure characterization studies reveal the formation of gradient nanosized spheroidal carbides and lath-shaped nano-martensite in the GCr15 bearing steel during the USP process.
View Article and Find Full Text PDFEqual-Additive-Subtractive Remanufacturing Integrated Laser Directed Energy Deposition with Shot Peening and Machining Induced High Performance of Plunger Rod.
Materials (Basel)
September 2024
State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, China.
The number of easily destroyed parts with high value is increasing in industry, and green remanufacture engineering is now mainstream in this new and expanding industrial field. Equal-additive-subtractive manufacturing, as a new technology that combines strengthening technology, additive manufacturing, and machining technology has great potential for development in the area of remanufacturing. Aiming at the damage characteristics of a plunger rod, this paper carries out a study about the repair technology by equal-additive-subtractive manufacturing of laser-directed energy deposition and shot peening.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!