Enhanced fatigue durability of Al–6 Mg alloy by applying ultrasonic impact peening: Effects of surface hardening and reinforcement with AlCuFe quasicrystalline particles

Mordyuk, B.N.; Prokopenko, G.I.; Milman, Yu.V.; Iefimov, M.O.; Sameljuk, A.V.

doi:10.1016/j.msea.2012.11.061

Cited by 64 publications

(20 citation statements)

References 45 publications

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“…[18][19][20]. Here, a brief description of appropriate regimes for the UIT process used in this study is given.…”

Section: Uit Processingmentioning

confidence: 99%

“…The fatigue lives of the studied specimens were presented as a Wöhler S-N plot (stress amplitude Δs a ¼Δs m /2 versus N f ). Besides, fatigue strength increase percentage (FSIP) was calculated using the following formula [20,34] ( …”

Section: Fatigue Testsmentioning

confidence: 99%

“…However, it is rather complicated and costly technology [10,11], and it not always leads to a complete elimination of pores, particularly where titanium powders with high chloride content are concerned [4]. On the other hand, a number of the surface hardening methods, such as shot peening (SP) [12][13][14], surface mechanical attrition treatment (SMAT) [15,16], deep rolling (DR) [17], laser shot peening (LSP) [17] or ultrasonic impact treatment (UIT) [18][19][20], can provide severe plastic deformation of the surface layer of the treated alloy, which results both in significant grain refinement and in the enhancement of fatigue properties. Moreover, the SP process applied to Al alloy [21] or PM Ti-6Al-4V alloy [22,23] was shown to induce the elimination of surface pores.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced fatigue behavior of powder metallurgy Ti–6Al–4V alloy by applying ultrasonic impact treatment

Dekhtyar

Mordyuk

Savvakin

et al. 2015

Materials Science and Engineering: A

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134

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“…[18][19][20]. Here, a brief description of appropriate regimes for the UIT process used in this study is given.…”

Section: Uit Processingmentioning

confidence: 99%

Section: Fatigue Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced fatigue behavior of powder metallurgy Ti–6Al–4V alloy by applying ultrasonic impact treatment

Dekhtyar

Mordyuk

Savvakin

et al. 2015

Materials Science and Engineering: A

Self Cite

134

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“…The number of studies carried out on aluminum materials is even less. According to Mordyuk et al, 27 UIT increases the surface hardness remarkably and leads to only slight increase in the surface roughness at the AlMg6 material. In the study by Li et al, 28 UIT leads to grain refinement on the surface layer of the 2A12 aluminum alloy welded joints.…”

Section: Introductionmentioning

confidence: 95%

Surface layer properties of ultrasonic impact–treated AA7075 aluminum alloy

Kahraman

2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this work, surface layer properties of AA7075 aluminum alloys' ultrasonic impact peened at different treatment times are investigated. Three different layers were found on the ultrasonic impact-treated surface of AA7075 aluminum alloys. The thicknesses of the layers increase with an increase in the treatment time or deformation amount. X-ray diffraction patterns indicate that the treated surfaces have no different phases from base material and are in the face-centered cubic phase. The highest hardness values of all treated AA7075 aluminum alloys were determined in nanocrystallization layer, which is the top layer of the surface because of the grain refinement and work hardening. A sharp increase at the residual stresses occurs, increasing the deformation time and amount because of the surface enlargement.

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“…Sci. 2016, 6, 304 2 of 7 deformation methods (see Figure 1a), which was originally developed to relax residual stress and improve the fatigue performance of welded structures [10,11]. It is usually used for welded processing to eliminate residual tensile stress, and is also used for the surface treatment of bulk material to implant compressive stress and form fine grain zone.…”

Section: Introductionmentioning

confidence: 99%

Residual Stress, Defects and Grain Morphology of Ti-6Al-4V Alloy Produced by Ultrasonic Impact Treatment Assisted Selective Laser Melting

et al. 2016

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For large-scale selective laser melting (SLM) additive manufacturing technology, three main problems severely restrict its development and application, namely the residual stress, defects, and columnar grains with anisotropy. To overcome these problems, a new method is proposed by combining SLM with ultrasonic impact treatment (UIT) technique. This study explores the feasibility of UIT assisted SLM, as well as the effect of UIT on the residual stress, defects and β grains of Ti-6Al-4V alloy sample. The results indicate that after the application of UIT during SLM, residual stress can be largely reduced and defects can be hammered flat and even eliminated. Meanwhile, the epitaxial growth of columnar grains is prevented, and fine equiaxed grains are formed due to plastic deformation and recrystallization.

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Enhanced fatigue durability of Al–6 Mg alloy by applying ultrasonic impact peening: Effects of surface hardening and reinforcement with AlCuFe quasicrystalline particles

Cited by 64 publications

References 45 publications

Enhanced fatigue behavior of powder metallurgy Ti–6Al–4V alloy by applying ultrasonic impact treatment

Enhanced fatigue behavior of powder metallurgy Ti–6Al–4V alloy by applying ultrasonic impact treatment

Surface layer properties of ultrasonic impact–treated AA7075 aluminum alloy

Residual Stress, Defects and Grain Morphology of Ti-6Al-4V Alloy Produced by Ultrasonic Impact Treatment Assisted Selective Laser Melting

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