Forming behavior and workability of 6061/B4CP composite during hot deformation

Li, Huizhong; Wang, Haijun; Zeng, Min; Liang, Xiaopeng; Liu, Hongting

doi:10.1016/j.compscitech.2011.02.009

Cited by 48 publications

(25 citation statements)

References 27 publications

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“…The flow stress values need to be corrected for them. The effect of friction can be calculated using the following equation [20,21]:…”

Section: Methodsmentioning

confidence: 99%

“…For accurate flow stress data, the data should be corrected for friction and temperature increase caused by adiabatic heating effects [20][21][22][23][24][25]. The comparison between corrected and uncorrected flow curves at different temperatures and Log (strain rate/s ) -1 Log (strain rate/s ) -1 Log (strain rate/s ) strain rates is shown in Fig.…”

Section: Flow Curvesmentioning

confidence: 99%

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Investigation on hot workability characteristics of Inconel 625 superalloy using processing maps

Guo

et al. 2012

J Mater Sci

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Hot compression tests of the commercial Inconel 625 were performed in the temperature range of 950-1200°C and strain rate range of 0.01-10 s -1 . The flow behavior and processing maps were investigated using the corrected flow stress data to eliminate effects of the friction and adiabatic heating. The processing maps have exhibited a domain in the temperature range of 1100-1200°C and strain rate range of 0.01-10 s -1 corresponding to the higher efficiency of power dissipation. Microstructural observations reveal that the full dynamic recrystallization (DRX) occurs in this domain, which is optimum processing window for hot working to obtain a homogeneous microstructure. DRX grain growth occurs in the temperature range of 1150-1200°C and strain rate range of 0.01-0.1 s -1 . In view of the refined and uniform grains obtained by hot deformation, the finish forming processing should be selected the deformation conditions in which the full DRX occurs without the grain growth. The small regimes of flow instability are noticed at temperature below about 970°C at the different strains. The material undergoes flow instability manifesting as bands of flow localizations and high density deformation twins. In addition, it is found that the undissolved second-phase particles and carbides can promote the DRX processing and be helpful to restrict the DRX grain growth.

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“…The flow stress values need to be corrected for them. The effect of friction can be calculated using the following equation [20,21]:…”

Section: Methodsmentioning

confidence: 99%

Section: Flow Curvesmentioning

confidence: 99%

Investigation on hot workability characteristics of Inconel 625 superalloy using processing maps

Guo

et al. 2012

J Mater Sci

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show abstract

“…Through the hot deformation, lower defects, more homogeneous reinforcement distribution and/or practical-shaped parts of the MMCs, can be achieved effectively [5][6][7]. At the same time, hot and/or cold deformations are also the frequent and effective technology to fabricate ultrafine-grained (UFG, 100-1000 nm) or nanocrystalline (NC, <100 nm) materials [1,[8][9][10].…”

Section: Introductionmentioning

confidence: 98%

“…Hot deformation processing, such as hot extrusion, hot forging, hot rolling, superplastic forming and so on, is widely used in mechanical-property improving and/or parts forming of metal matrix composites (MMCs), where a clear understanding of the hot deformation behavior of these composites is the basis to optimize the processing parameters [1][2][3][4][5]. Through the hot deformation, lower defects, more homogeneous reinforcement distribution and/or practical-shaped parts of the MMCs, can be achieved effectively [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Hot deformation behavior of in situ nano ZrB2 reinforced 2024Al matrix composite

Kai

Zhao

Wang

et al. 2015

Composites Science and Technology

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“…The bright field TEM images of the AA6061-10 vol.% SiC composite deformation at 500°C, strain rate of 1 s −1 with a strain of (a) 0.1 and (b) 0.5. er CRSS, easier occurrence of DRX and lower load transfer effect may lead to the flow stress reducing at higher deformation temperatures[20][21][22][23][24].…”

mentioning

confidence: 98%

Hot deformation behaviour and processing maps of AA6061-10 vol.% SiC composite prepared by spark plasma sintering

Liu

Sun³

et al. 2016

Sci. China Technol. Sci.

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AA6061-10 vol.% SiC composite was successfully prepared by spark plasma sintering. The deformation behaviour of this composite was studied using the uniaxial compression test, which was conducted at temperatures between 300 and 500°C and strain rates between 0.001 and 1 s −1 . Results indicate that the stress-strain curves of the AA6061-10 vol.% SiC composite typically feature dynamic recrystallization. The steady stress can be described by a hyperbolic sine constitutive equation, and the activation energy of the composite is 230.88 kJ/mol. The processing map was established according to the dynamic materials model. The optimum hot deformation temperature is 450-500°C and the strain rate is 1-0.1 s −1 . The instability zones of flow behaviour can also be identified using the processing map.Al matrix composite, hot deformation, processing map, stress-strain curves, spark plasma sintering Citation:Li X P, Liu C Y, Sun X W, et al. Hot deformation behaviour and processing maps of AA6061-10 vol.% SiC composite prepared by spark plasma sintering. Sci China Tech Sci, 2016, 59: 980988,

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Forming behavior and workability of 6061/B4CP composite during hot deformation

Cited by 48 publications

References 27 publications

Investigation on hot workability characteristics of Inconel 625 superalloy using processing maps

Investigation on hot workability characteristics of Inconel 625 superalloy using processing maps

Hot deformation behavior of in situ nano ZrB2 reinforced 2024Al matrix composite

Hot deformation behaviour and processing maps of AA6061-10 vol.% SiC composite prepared by spark plasma sintering

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