Study by DSC and HRTEM of the aging strengthening of Cu–Ni–Zn–Al alloys

Diánez, M. J.; Donoso, E.; Criado, J. M.; Sayagués, M. J.; Díaz, G.; Olivares, L.

doi:10.1016/j.matdes.2015.12.030

Cited by 16 publications

(2 citation statements)

References 25 publications

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“…At present, numerous articles have been published on the methods and precipitation behavior during the aging process of alloys such as Cu-Ti-Ni [7][8][9][10], Cu-Cr-Zr [11][12][13][14][15], Cu-Ni-Zn-Al [16], Cu-Be [17,18]. During the aging process, the precipitates will preferentially precipitate along certain crystal planes of the matrix or some place where there are high dislocation density and high solute concentration.…”

Section: Introductionmentioning

confidence: 99%

Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy

Zou

Lin

Shi

et al. 2020

Mater. Res. Express

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This paper presents a systematic study of the precipitation strengthening mechanism in polybasic Cu-Ni-Mn-Fe alloy. The effect of aging treatment on the microstructure, morphologies and phase transition of the Cu-Ni-Mn-Fe alloy were analyzed and discussed using scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and differential scanning calorimeter (DSC), respectively. The θ-MnNi precipitates with a size of 50-100 nm, mainly formed during aging, were considered as the source of the aging strengthening. In addition, there is a semi-coherent between the plane (111) of the θ-MnNi precipitates and the plane (200) of the α-Cu matrix. The density of θ-MnNi precipitates increases with the increase of the aging time. The hardness, yield strength and ultimate tensile strength of the aged alloy increase from 127 to 366HB, 217 to 788 MPa, and 433 to 842 MPa, respectively, which is attributed to precipitation strengthening. OPEN ACCESS RECEIVED

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Section: Introductionmentioning

confidence: 99%

Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy

Zou

Lin

Shi

et al. 2020

Mater. Res. Express

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“…Since the 1950s and 60s, Cu–Ti–M and Cu–Ni–M alloys have been widely studied [5,6,7]. Among them, the Cu–Ti alloy [8,9] shows excellent performance and, particularly, a high conductivity.…”

Section: Introductionmentioning

confidence: 99%

A High-Throughput Search for Composition–Phase–Property Relations of Cu–Ni/Ti–Al Elastic Copper Alloys

et al. 2018

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A high-throughput method was employed to effectively obtain the cross-scale relationship of elastic copper alloys. Firstly, a Cu–Ni–Ti–Cu25Al–Cu35Sn diffusion multiple was prepared and heat-treated under a specified condition to form a series of diffusion layers with the concentration gradient at the multielement metal interface. Then, the compositions, elastic moduli, and hardness of the Cu–Ni–Al and Cu–Ti–Al ternary copper alloys were tested. Meanwhile, the solid phase sequences in the diffusion zones were predicted by the CALPHAD (CALculation of PHAse Diagram) method. Through these experimental and calculated results, the composition–phase–property relations of the Cu–Ni–Al and Cu–Ti–Al ternary systems were established.

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