Structural coloration of metallic surfaces with micro/nano-structures induced by elliptical vibration texturing

Yang, Yang; Pan, Yayue; Guo, Ping

doi:10.1016/j.apsusc.2017.01.026

Cited by 74 publications

(21 citation statements)

References 23 publications

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“…They reported an increase in tool life cutting length from 0 to 20 m when decreasing the effective contact time from 52% to 22%. Yang et al 30 reported notable improvements in this area as they achieved vertical and horizontal amplitudes of 12 µm and 4.5 µm. Table 3 gives a ready idea of efforts made in both 1D VAM and EVAM for the past seven years and the reported level of improvements made.…”

Section: Vam and Evammentioning

confidence: 99%

Molecular dynamics simulation of the elliptical vibration-assisted machining of pure iron

Goel

Martinez

Chavoshi

et al. 2018

Journal of Micromanufacturing

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It is well known that diamond wears out rapidly (within several metres of cutting length) when machining low carbon ferrous alloys and pure iron. The past few years have seen a growing interest in the field of elliptical vibration-assisted machining (EVAM) due to it being successful in the micromachining of difficult-to-cut materials including steel. During EVAM, a cutting tool is prescribed an oscillatory motion perpendicular to the direction of cutting, thereby causing the tool to be relieved intermittently from chemical and physical contact with the workpiece. This phenomenon serves as a guideline to develop the simulation test bed for studying EVAM in this work to compare it with conventional cutting. The pilot implementation of the EVAM came as a quasi-3-dimensional (Q3D) elliptical cutting model of body-centred cubic (BCC) iron with a diamond cutting tool using molecular dynamics (MD) simulation. The developed MD model supplemented by the advanced visualization techniques was used to probe the material removal behaviour, the development of the peak stress in the workpiece and the way the cutting force evolves during the cutting process. One of the key observations was that the cutting chips of BCC iron during conventional cutting underwent crystal twinning and became polycrystalline, while EVAM resulted in cutting chips becoming highly disordered, leading to better viscous flow compared to conventional cutting.

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Section: Vam and Evammentioning

confidence: 99%

Molecular dynamics simulation of the elliptical vibration-assisted machining of pure iron

Goel

Martinez

Chavoshi

et al. 2018

Journal of Micromanufacturing

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“…These things are digitally designed and transformed into CAD (Computer Aided Design) data to directly drive and control the printing and machining tools. In addition to surface coloring by the grating technique [2], the micro-/nano-textures on the metallic plates and products are expected to significantly change the original surface properties and to improve the heat transfer process. The hydrophilic surface of AISI304 plates was modified by the femtosecond laser nanotexturing to be hydrophobic or super-hydrophobic [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Micro-/Nano-Texturing of Aluminum by Precise Coining for Functional Surface Decoration

Aizawa

Yoshino

Inohara³

2020

Metals

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The AISI316 austenitic stainless steel die was prepared and nitrided at 673 K for 14.4 ks. Through this low temperature plasma nitriding, the AISI316 die was homogeneously hardened up to 1400 HV within its surface layer of 50 μm. This nitrided AISI316 die was utilized to print the tailored micropattern with nanotextures onto its surface by the femtosecond laser processing. Each micropattern consisted of the tailored segments to have unidirectional nanotextures with different orientations. Each segment was recognized by its intrinsic surface plasmonic brilliance to tailored nanotextures. The CNC (Computer Numerical Control) stamping system was used to coin these micropatterns with nanotextures onto the AA1060 aluminum plates with the thickness of 1 mm. SEM (Scanning Electron Microscopy) and optical microscopy were employed to characterize the original micro-/nano-textures on the AISI316 die as well as the coined nanotextured patterns on the AA1060 plate surfaces.

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“…Roughness structure preparation refers to constructing specific micro-scale structures, such as micro-dimples or micro-grooves, on the material’s surface, which serve as a surface modification to improve the surface properties of the material [8,9,10]. At present, there are several methods to construct micro-scale structures on the surface of Al alloys, which can be generally divided into mechanical machining, energy beam etching, and coating techniques [11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Research on the Improvement Effect and Mechanism of Micro-Scale Structures Treated by Laser Micro-Engraving on 7075 Al Alloy Tribological Properties

et al. 2019

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During various applications in aerospace, ships, autos, and aircraft, 7075 Al alloy will frequently contact other materials, and therefore suffer from slight abrasion. However, the poor tribological properties of 7075 Al alloy greatly affect its performance and life length, leading to limitations in its application. Preparing roughness structures on the surface is regarded as a promising method to improve the properties of materials. However, the tribological properties of 7075 Al alloy cannot be enhanced significantly by roughness structures in complex dynamic changeable environments, owing to the incomplete understanding of the effect of roughness structures. Given the above issues, in this paper, micro-scale structures (linear grooves, gridding grooves, and arc grooves) were designed and prepared on 7075 Al alloy surfaces by a surface treatment (laser micro-engraving), which provides excellent controllability of the morphology and dimensions of as-prepared roughness structures. The tribological properties of the as-prepared surfaces were investigated systemically. The effect of micro-scale structures on the tribological properties was studied. The wear mechanism and tribological properties improvement mechanism of the surfaces were clarified. Furthermore, the effect degree of the enhancement factors of the micro-scale structures on the tribological properties was explored under different conditions. The results indicate that the micro-scale structures play an important role in improving the tribological properties of Al alloy under different sliding speeds. The improvement mechanism can be summarized by four factors. However, the effect degrees of these factors on the tribological properties exhibit considerable differences. This study not only develops specific micro-scale structures that can dramatically improve the tribological properties of 7075 Al alloy under different conditions, but also offers guidance for the construction of appropriate roughness structures that can dramatically improve the tribological properties of Al alloy according to the friction conditions.

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Structural coloration of metallic surfaces with micro/nano-structures induced by elliptical vibration texturing

Cited by 74 publications

References 23 publications

Molecular dynamics simulation of the elliptical vibration-assisted machining of pure iron

Molecular dynamics simulation of the elliptical vibration-assisted machining of pure iron

Micro-/Nano-Texturing of Aluminum by Precise Coining for Functional Surface Decoration

Research on the Improvement Effect and Mechanism of Micro-Scale Structures Treated by Laser Micro-Engraving on 7075 Al Alloy Tribological Properties

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