Fatigue properties of 2024-T3, 7075-T6 aluminum alloys modified using plasma-enhanced ion beams

Bystritskii, V.M.; Garate, E.; Earthman, James C.; Kharlov, A. V.; Lavernia, Enrique J.; Peng, Xiaodong

doi:10.1016/s0167-8442(99)00025-7

Cited by 14 publications

(12 citation statements)

References 5 publications

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“…A HAZ was formed beside the weld zone. These reports [23][24][25][26] also explained the behavior of precipitates and dislocations associated with the temperature profile caused by frictional heat. The precipitates originally present in the base metal disappeared in the weld nugget and coarsened in the HAZ.…”

Section: S63mentioning

confidence: 78%

“…failure. The fatigue cracks initiate at locations where grain boundaries have separated immediately adjacent to the sample surface [25][26][27][28]. At high cycle load, the microscopic crack growth has been associated with some degree of material ductile behavior (black arrows), showing the conventional fracture surfaces of very fine grain size structure into the welded section, see fig.…”

Section: S65mentioning

confidence: 99%

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Relationship between micro-structure and mechanical properties of dissimilar aluminum alloy plates by friction stir welding

Sarsılmaz

2018

THERM SCI

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Friction stir welding can be applied to weld dissimilar aluminum alloys which have different chemical and mechanical properties without causing any weld defects under a wide range of welding conditions. In this study, AA2024-T3 and AA6063-T6 aluminum alloys were selected and successfully welded in butt position together using by friction stir welding. The welding trials were conducted using different rotational speed and traverse speed conditions also investigating their effect on mechanical and micro-structural behavior of friction stir welding joints. The micro-structural evolution of the material was analyzed by optical observations and scanning electron microscopy inspections of the weld cross-sections. Tension and fatigue studies were also employed to the study. On the other hand, the fracture characterizations of samples were examined by scanning electron microscopy. Fatigue tests were performed by using a resonant electro-mechanical fatigue testing machine by axial bending fatigue test procedure. The fatigue strength has been analyzed drawing S-N curves. Experimental results indicate that micro-structural and mechanical properties are significantly affected by changing welding parameters within the chosen range of welding conditions.

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Section: S63mentioning

confidence: 78%

Section: S65mentioning

confidence: 99%

Relationship between micro-structure and mechanical properties of dissimilar aluminum alloy plates by friction stir welding

Sarsılmaz

2018

THERM SCI

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“…The extensive use of coated structures has led to an increasing interest in the fracture and time-or cycledependent failure of composite parts, particularly those involving surface ceramic films. [1][2][3][4][5][6][7] Among these research works, fatigue failure of bi-material interfaces involving ceramic layers and metallic substrates involves different mechanisms and requires different interpretations. [8][9][10] Murakami et al 8 show an increase in the fatigue life with increasing film thickness.…”

Section: Introductionmentioning

confidence: 99%

Fatigue resistance of CrN thin films deposited by arc evaporation process on H11 tool steel and 2205 duplex stainless steel

Baragetti

Gelfi

Vecchia

et al. 2005

Fatigue Fract Eng Mat Struct

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A B S T R A C T Notwithstanding the wide use of PVD coated components, not only in fields where tribological behaviour is important and well assessed, fatigue behaviour is still an object of research in applications where enhanced fatigue resistance is required. The aim of this paper is to analyse fatigue crack growth mechanisms and to relate their nucleation sites to the microstructure and to residual stress data. Two structural steels were used as the substrate (H11 tool steel grade and 2205 duplex stainless steel grade), while a monolayer of CrN, 5 µm deep, was deposed as a coating. Four-point bending fatigue tests were carried out in order to obtain the bending fatigue limit. Experimental results obtained by scanning electron microscopy analyses, residual stresses measurements and hardness evaluations carried out using a nanoindenter device were considered to explain the fatigue mechanisms involving a PVD coated part in terms both of nucleation site and crack growth process.

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“…A taxa de propagação de trinca por fadiga, da/dN vs K  é calculada de acordo com a seguinte relação: As Figuras 9(a) e 9(b) apresentam os espectros obtidos via difração de raios-X para as ligas AA2198-T851 e AA2524-T3. , 1999;GÃO et al, 1998;POLMEAR, 1995;RINGER et al, 2000;WERT, 1981). As ligas AA7081-T73511 e AA7050-T7451 apresentaram uma diferença insignificante no E corr mostrando uma estabilização logo nos primeiros minutos de ensaio de acordo com os ensaios de OCP.…”

Section: Método Incremental Polinomialunclassified

Estudo da corrosão e corrosão-fadiga em ligas de Al e Al - Li de alta resistência para aplicação aeronáutica

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Fatigue properties of 2024-T3, 7075-T6 aluminum alloys modified using plasma-enhanced ion beams

Cited by 14 publications

References 5 publications

Relationship between micro-structure and mechanical properties of dissimilar aluminum alloy plates by friction stir welding

Relationship between micro-structure and mechanical properties of dissimilar aluminum alloy plates by friction stir welding

Fatigue resistance of CrN thin films deposited by arc evaporation process on H11 tool steel and 2205 duplex stainless steel

Estudo da corrosão e corrosão-fadiga em ligas de Al e Al - Li de alta resistência para aplicação aeronáutica

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