Effect of hot rolling on the enhancement of mechanical properties of low density Cu–Cr–Nb sintered alloy

Shukla, A.K.; Murty, S.V.S. Narayana; Kumar, Ritesh; Mondal, Kunal

doi:10.1016/j.matdes.2012.06.041

Cited by 10 publications

(2 citation statements)

References 25 publications

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“…Precipitation-hardened Cu-Cr-based alloys are widely used for railway contact wires [1], lead frame materials [2,3], connectors [4] and nuclear reactors [5,6], owing to their superior combination of high mechanical strength and high electrical conductivity. They are typical of Cu-based alloy systems with a precipitation hardening effect, due to the formation of fine precipitate particles in the Cu matrix upon heating.…”

Section: Introductionmentioning

confidence: 99%

Structure and orientation relationship of new precipitates in a Cu–Cr–Zr alloy

Chen

Jiang

Liu

et al. 2018

Materials Science and Technology

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The crystallography and morphology of the nano-sized precipitate particles in a ternary Cu–Cr–Zr alloy were studied by transmission electron microscopy. A new type of face-centred-cubic (f.c.c) Cr-rich precipitate was observed. This precipitate is ordered and solute enriched on alternate {110} f.c.c planes, with an ellipsoid-shaped morphology. The new orientation relationship (OR) between the precipitate and Cu matrix satisfies [211]M//[011]p and [100]M//[111]p, {-111}M//{200}p and {02-2}M//{02-2}p. The difference between this new OR and the Nishiyama–Wasserman OR between body-centred-cubic (b.c.c) Cr and the Cu matrix can be detailed by Δ g vectors in the diffraction patterns. Furthermore, the precipitation strengthening effect is increased greatly with the formation of these new precipitate particles when compared to binary Cu–Cr alloys.

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Section: Introductionmentioning

confidence: 99%

Structure and orientation relationship of new precipitates in a Cu–Cr–Zr alloy

Chen

Jiang

Liu

et al. 2018

Materials Science and Technology

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“…If necessary, the secondary operations can be applied; in the aspect of mechanical strengthening normally forging, rolling and extrusion process are carried out [1,2]. The permanent deformation of sintered porous materials is same as that of pore-less materials; nevertheless, additional complications involved in powder metallurgy (P=M) preform is the volume fraction of voids.…”

Section: Introductionmentioning

confidence: 99%

Deformation Study of Sintered Iron–Carbon–Silicon–Copper Steel Compacts during Cold Forging

Ananthanarayanan

Mehta

2014

Materials and Manufacturing Processes

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Cylindrical preforms of 0.4 initial aspect ratio with 86 AE 1% initial theoretical density has been prepared for iron-0.8%carbon-1%silicon with 0.4% and 1.2% copper added steel preforms through classical powder metallurgy route. These preforms are then subjected to secondary deformation such as cold upsetting to evaluate the deformation characteristics. The cold upsetting is carried out in an incremental step of 0.04 MN under two different frictional media using 100 tons capacity hydraulic press. Plasticity theories have been portrayed for various stresses, strains and Poisson's ratio under triaxial condition. The results revealed that the compositional effect on deformation is quite evident under dry friction condition than at graphite employed lubricant condition; on the other hand, both the friction condition shows a phenomenal effect on densification characteristics. Further, it is found that increase of copper content and frictional condition proportionally increases axial and hoop stress but there is a nil effect on mean stress.

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Materials for Indian Space Program: An Overview

Murty

2022

J Indian Inst Sci

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Effect of hot rolling on the enhancement of mechanical properties of low density Cu–Cr–Nb sintered alloy

Cited by 10 publications

References 25 publications

Structure and orientation relationship of new precipitates in a Cu–Cr–Zr alloy

Structure and orientation relationship of new precipitates in a Cu–Cr–Zr alloy

Deformation Study of Sintered Iron–Carbon–Silicon–Copper Steel Compacts during Cold Forging

Materials for Indian Space Program: An Overview

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