Mechanical Properties Anisotropy of Cold-Rolled and Solution-Annealed Ni-Based Hastelloy C-276 Alloy

Mehta, Kumud Kant; Mukhopadhyay, P.; Mandal, R.K.; Singh, A. K.

doi:10.1007/s11661-014-2294-1

Cited by 36 publications

(17 citation statements)

References 22 publications

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“…Therefore, the larger grain tentatively carries the greater frequencies for grain fragmentation [12]. Orientation of individual crystallites has crucial role because of the orientation of its characteristic slip system with respect to sample loading reference and therefore, slip heterogeneity and consecutive breaking of grain [22,23]. The role of SFE to fragment grains is eventually crucial.…”

Section: Breaking Tendency Of Tempered Lathmentioning

confidence: 99%

Microstructural developments during erosion of tribological steels

Mukhopadhyay

Srinivas

Roy

2016

Materials Characterization

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Section: Breaking Tendency Of Tempered Lathmentioning

confidence: 99%

Microstructural developments during erosion of tribological steels

Mukhopadhyay

Srinivas

Roy

2016

Materials Characterization

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“…The schematic diagram of the tensile specimens is given elsewhere. [12] Room temperature tensile tests were conducted at a normal strain rate (10 À3 s À1 ) on screw-driven Instron 4507 testing machine (Instron Corporation, Norwood, MA, USA). The strains were measured using an axial type extensometer (model 1267: Instron U.K.), specified for gage length of 10 mm.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…[21] On the contrary, Mehta et al have recently shown different mechanisms responsible for two-slope behavior of solid solution strengthened Ni-based Hastelloy C-276 and Ni20Cr-8Fe alloys. [12,22] At low strains, sample display the presence of annealing twins and less strain localization at the grain boundaries. Whereas formation of deformation twins along with high-strain localization within the deformation twins and at the grain boundaries are the key features in high-strain regime samples.…”

Section: Tensile Flow Behaviormentioning

confidence: 99%

Microstructure, Texture, and Orientation-Dependent Flow Behavior of Binary Ni-16Cr and Ni-16Mo Solid Solution Alloys

Mehta

Mukhopadhyay

Mandal

et al. 2015

Metall Mater Trans A

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This work describes microstructure, texture, and orientation-dependent flow behavior of Ni16Cr and Ni-16Mo alloys in hot rolled and annealed condition. The high and low stacking fault energy values associated with Ni-16Cr and Ni-16Mo result in partial recrystallization after recovery and presence of twins in recrystallized grains, respectively. Both the alloys display two slopes in the true plastic stress-strain curves and follow Ludwigson relation, however the deformation mechanisms of both the alloys associated with two slopes are different. The lowstrain regime of flow curves of the alloy Ni-16Cr is associated with uniform and finely spaced slip lines within the grains along with very small fraction of strain localization. On the other hand, a few slip lines appear to cross the grain boundaries in high-strain regime with a favorable angular deviation between adjacent grains along with large fractions of strain localization (2 to 5 deg low-angle grain boundary). On the other hand, the low-strain regime of the alloy Ni-16Mo is related to the presence of uniformly and finely spaced slip lines and small fractions of both the deformation twins as well as strain localization. The main features of high-strain regime of the alloy Ni-16Mo exhibit large volume fractions of deformation twins and strain localization along with few coarse penetrating slip lines across the grain boundaries. Sample orientation-dependent ductility of both the alloys has been explained based on dislocation storage capacity and dynamic recovery coefficient using Kock-Mecking-Estrin analysis.

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“…The hot rolled microstructures further get modified during solution treatment and subsequent aging. Two types of anisotropy namely, in-plane and through-thickness, have been reported in rolled products [21]. The thin sheet products typically display in-plane anisotropy i.e.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Texture, Mechanical and Ballistic Properties Correlation of a Hot Rolled and Peak Aged AA-7017 Alloy Plate at Surface and Centre

Jena¹,

Kumar²,

Mandal³

et al. 2017

MSA

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The present work describes microstructure, texture, mechanical and ballistic properties correlation of a hot rolled and peak aged AA-7017 alloy plate at surface and centre. Both the microstructures and textures are different on the surface and centre of the plate. The surface of the plate shows recrystallized grains and a weak over all texture. The centre of the plate displays elongated grains and a sharp texture. Tensile properties, hardness and impact toughness are evaluated at surface and centre of the plate. It is observed that strength and hardness is high at centre, whereas ductility and impact toughness is more at the surface. Ballistic properties of the plate at centre and surface are measured by impacting against two different 7.62 mm deformable projectiles. The plates impacted on the surface shows better ballistic resistance. Ballistic performance of the plate at surface and centre has been correlated with the microstructure, texture and mechanical properties.

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Mechanical Properties Anisotropy of Cold-Rolled and Solution-Annealed Ni-Based Hastelloy C-276 Alloy

Cited by 36 publications

References 22 publications

Microstructural developments during erosion of tribological steels

Microstructural developments during erosion of tribological steels

Microstructure, Texture, and Orientation-Dependent Flow Behavior of Binary Ni-16Cr and Ni-16Mo Solid Solution Alloys

Microstructure, Texture, Mechanical and Ballistic Properties Correlation of a Hot Rolled and Peak Aged AA-7017 Alloy Plate at Surface and Centre

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