Texture analysis in hexagonal materials

Wang, Y.N; Huang, J.C.

doi:10.1016/s0254-0584(03)00168-8

Cited by 695 publications

(172 citation statements)

References 29 publications

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“…[14] In addition, it is well known that the critical resolved shear stress for prismatic slip and twinning is always higher than that for the basal slip. [22] Therefore, we believe that the enhanced strength observed in nanostructured Mg-10Al micropillars with 2.5 μm diameter is mainly due to the activation of the aforementioned deformation mechanisms.…”

Section: (E)-(h) Show 52mentioning

confidence: 93%

Size-Induced Strengthening in Nanostructured Mg Alloy Micropillars

Chang

Pozuelo

Yang

2014

Materials Research Letters

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Section: (E)-(h) Show 52mentioning

confidence: 93%

Size-Induced Strengthening in Nanostructured Mg Alloy Micropillars

Chang

Pozuelo

Yang

2014

Materials Research Letters

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“…[4,14,33]. In order to test these effects, tensile properties (i.e., UTS: ultimate tensile strength, YS: yield strength, RA: reduction in area, and EL: elongation) for VT3-1 alloy in various states were evaluated.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…In general, α and α + β titanium alloys, as well as other hexagonal close-packed (HCP) metals such as magnesium alloys [7], exhibit distinct textures and a pronounced anisotropy in mechanical properties as a result of the inherent deformation mechanism of the hexagonal crystal structure [8][9][10][11][12][13][14]. It was reported that there exists a cluster of α phases with sharp local texture called macrozones in semi-finished products such as billets [15,16].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Texture Evolution and Mechanical Properties of VT3-1 Titanium Alloy Processed by Multi-Pass Drawing and Subsequent Isothermal Annealing

Lei

Dong

Zhang

et al. 2017

Metals

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Microstructure, texture evolution, and mechanical properties of Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si (VT3-1) titanium alloy processed by multi-pass drawing and subsequent isothermal annealing were systematically investigated. A fiber-like microstructure is formed after warm drawing at 760 • C with 60% area reduction. After isothermal annealing, the samples deformed to different amounts of area reduction show a similar volume fraction (80%) of α phase, while the sample deformed to 60% exhibits a homogeneous microstructure with a larger grain size (5.8 µm). The major texture component of α phase developed during warm drawing is centered at a position of {φ 1 = 10 • , φ = 65 • , φ 2 = 0 • }. The textures for annealed samples are almost along the orientation of original deformation textures and show significant increases in orientation density and volume fraction compared with their deformed states. In addition, for the drawn samples, the ultimate tensile strength increases but the ductility decreases with increasing drawing deformation. A negative slope of yield strength of annealed samples versus grain size (d −1/2 ) is found due to the difference between texture softening for as-rolled + annealed state and texture hardening for drawn + annealed state. The mechanical properties of annealed samples are found to be strongly dependent on grain size and texture, resulting in the balance of the strength and ductility.

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“…Therefore, a high tensile strength is observed along the extrusion direction. 20 The flow stress of Mg strongly depends on the grain size; although there is also a strong texture dependence due to the large difference in critical shear stress between the basal planes and the non-basal planes. Such differences are decreased with increased temperature.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

The effect of thermo-mechanical processing on the structure, static mechanical properties and fatigue behaviour of pure Mg

Kubásek¹,

Vojtěch²,

Dvorský³

2017

Mater. tehnol.

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Magnesium alloys find important applications in automotive, aircraft and space industries. Magnesium itself is also a key component in biodegradable metallic materials considered for applications in medicine. Although there are many studies that include the mechanical behaviour of pure Mg and its alloys after different thermomechanical processing, there is a huge impact of the processing method on the observed properties. Based on these facts, predicting the final properties is difficult. This paper deals with the preparation of pure Mg using a classic extrusion method with a low extrusion ratio, slow extrusion rate and low temperature. These parameters were selected to prevent an excessive grain size and to obtain optimal mechanical properties. The prepared materials were subsequently heat treated under different conditions and the relations between the grain size, texture strength and mechanical properties were studied. As well as static mechanical tests in tension and compression, fatigue tests were also performed. Finally, the obtained data were fitted using the Hall-Petch relation and the results were compared with the literature. The observed results confirmed the significant effect of processing on the mechanical properties with a strong impact on the Hall-Petch behaviour. Keywords: magnesium, mechanical properties, texture, Hall-Petch relation Magnezijeve zlitine so pomembne za uporabo v avtomobilski, letalski in vesoljski industriji. Magnezij je tudi klju~na komponenta v biorazgradljivih kovinskih materialih za uporabo v medicini.^eprav obstaja mnogo {tudij, ki vklju~ujejo mehansko obna{anje~istega Mg in njegovih zlitin po razli~nih termomehanskih obdelavah, je velik vpliv metode obdelovanja na opazovane lastnosti. Na osnovi tega je te`ko napovedovati kon~ne lastnosti. Ta~lanek obravnava pripravo~istega Mg s klasi~no metodo ekstruzije z majhnim razmerjem ekstruzije, majhno hitrostjo ekstruzije pri nizki temperaturi. Ti parametri so bili izbrani, da se prepre~i prekomerna rast zrn in da se dose`e optimalne mehanske lastnosti. Pripravljeni material je bil pozneje toplotno obdelan pri razli~nih pogojih in {tudirane so bile odvisnosti med velikostjo zrn, teksturo in mehanskimi lastnostmi. Razen stati~nih mehanskih preizkusov, nateznih in tla~nih, so bili izvedeni tudi preizkusi utrujanja. Na koncu so bili dobljeni podatki primerjani s Hall-Petchevim razmerjem in dobljeni rezultati so bili primerjani s podatki iz literature. Dobljeni rezultati so potrdili mo~an vpliv obdelave na mehanske lastnosti, z mo~nim vplivom na Hall-Petchevo razmerje.

show abstract

Texture analysis in hexagonal materials

Cited by 695 publications

References 29 publications

Size-Induced Strengthening in Nanostructured Mg Alloy Micropillars

Size-Induced Strengthening in Nanostructured Mg Alloy Micropillars

Microstructure, Texture Evolution and Mechanical Properties of VT3-1 Titanium Alloy Processed by Multi-Pass Drawing and Subsequent Isothermal Annealing

The effect of thermo-mechanical processing on the structure, static mechanical properties and fatigue behaviour of pure Mg

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