Relationship between microstructure and mechanical properties of a spinodally decomposing Cu-15Ni-8Sn alloy prepared by spray deposition

Hermann, P; Morris, David G.

doi:10.1007/bf02665473

Cited by 40 publications

(8 citation statements)

References 20 publications

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“…With decreasing aging temperature, spherical L1 2 nanoparticles could be coherently-precipitated into the FCC matrix, compared with the rod-like DO 22 precipitates. The particle morphology can affect the mechanical property of this alloy, as seen in Figure 9 c, being the variation tendency of the tensile yield strength with the aging time [ 77 , 78 , 79 ]. It was found that the coherent precipitation of spherical L1 2 nanoprecipitates corresponds to the highest strength.…”

Section: Precipitate Morphology and Precipitation Strengthening Inmentioning

confidence: 99%

Coherent Precipitation and Strengthening in Compositionally Complex Alloys: A Review

Wang

Pang

et al. 2018

Entropy

127

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High-performance conventional engineering materials (including Al alloys, Mg alloys, Cu alloys, stainless steels, Ni superalloys, etc.) and newly-developed high entropy alloys are all compositionally-complex alloys (CCAs). In these CCA systems, the second-phase particles are generally precipitated in their solid-solution matrix, in which the precipitates are diverse and can result in different strengthening effects. The present work aims at generalizing the precipitation behavior and precipitation strengthening in CCAs comprehensively. First of all, the morphology evolution of second-phase particles and precipitation strengthening mechanisms are introduced. Then, the precipitation behaviors in diverse CCA systems are illustrated, especially the coherent precipitation. The relationship between the particle morphology and strengthening effectiveness is discussed. It is addressed that the challenge in the future is to design the stable coherent microstructure in different solid-solution matrices, which will be the most effective approach for the enhancement of alloy strength.

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Section: Precipitate Morphology and Precipitation Strengthening Inmentioning

confidence: 99%

Coherent Precipitation and Strengthening in Compositionally Complex Alloys: A Review

Wang

Pang

et al. 2018

Entropy

127

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“…Deyong L. et al [21,22] prepared Cu-15Ni-8Sn alloy samples without macrosegregation by the single-roll rotary casting rapid solidification method. Hermann P. et al [23] obtained the Cu-15Ni-8Sn alloy by Osprey spray and found that Sn element segregation was inhibited and presented isoaxial crystals. However, rapid solidification technology is generally only suitable for making plates and strips with small cross-sectional dimensions [19].…”

Section: Rapid Solidification Technologymentioning

confidence: 99%

Research Progress on Cu–15Ni–8Sn Alloys: The Effect of Microalloying and Heat Treatment on Microstructure and Properties

Yang,

Song,

Zhou

et al. 2023

Materials

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Cu–15Ni–8Sn alloy is the best choice to replace beryllium bronze alloy. This alloy has unparalleled application value in aerospace, ocean engineering, electronic information, equipment manufacturing, and other fields. However, the application of Cu–15Ni–8Sn alloy is challenged and limited because of a series of problems in its preparation and processing, such as easy segregation, difficult deformation, and discontinuous precipitation. It is an effective way to improve the comprehensive properties of Cu–15Ni–8Sn alloy using alloying design and process optimization to control the as-cast, deformed, and heat-treated microstructures. At present, it is a hot spot for scholars to study. In this paper, the grade generation, system evolution, and preparation technology development of Cu–15Ni–8Sn alloy are comprehensively reviewed. The phase transformation sequence of the Cu–15Ni–8Sn alloy is discussed. The influence of the type, amount, and existing form of alloying elements on the strength of Cu–15Ni–8Sn alloy and its mechanism are systematically summarized. Furthermore, the latest research progress on the effects of solid solution, cold deformation, and aging on the phase structure transformation and mechanical properties of Cu–15Ni–8Sn alloy is summarized. Finally, the future development trend of the Cu–15Ni–8Sn alloy is projected. The research results of this paper can provide a reference for the control of the microstructure and properties of high-performance Cu–15Ni–8Sn alloys used in key fields, as well as the optimization of the preparation process and alloy composition.

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“…The Cu-Ni-Sn alloys attracted wide interest in electronic and mechanical industries because of high strength, excellent stress relaxation, corrosion resistance, good thermal and electrical conductivity, and so on [ 1 , 2 , 3 ]. So, the Cu-Ni-Sn alloys are expected as candidates for the nocuous Cu-Be alloys with the high strength in the application of electrical springs, connectors, bearings, [ 3 , 4 , 5 ], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al [ 13 ] investigated the phenomenon of age-hardening of Cu-15Ni-8Sn alloy coating, which was fabricated by laser cladding. Hermann et al [ 4 ] studied the relationship between the microstructure and mechanical properties of Cu-15Ni-8Sn alloy, and he results indicated that the improvement of strength was attributed to grain-size reduction and internal stress fields that are caused by the age-hardening process. Up to now, much attention has focused on the improvement of mechanical properties and the microstructural evolution of Cu-Ni-Sn alloys with the same composition under different aging condition [ 14 , 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni Content on Microstructure and Characterization of Cu-Ni-Sn Alloys

Wang

et al. 2018

Materials

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Cu-xNi-5Sn (wt %) alloys with a different Ni content were prepared by a powder metallurgy method. The effect of Ni content on the hardness and yield strength of Cu-xNi-5Sn (wt %) alloys was investigated. The microstructure, composition, and morphology of Cu-xNi-5Sn (wt %) alloys were observed by X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), and cold field emission scanning electron microscope (FESEM), respectively. Results indicate that the hardness and yield strength firstly increase and then decrease with the increase of Ni content and reach up to a maximum when Ni content is 12.5 wt %. Furthermore, the formation of the sandwich structure and needle-like phase is found in the grain, the grain boundary and intragranular precipitates are rich in both the Ni and Sn phase. The formation of the inerratic and suitable lamellar precipitates of sandwich structure and needle-like phase can be responsible for the good mechanical properties of the Cu-12.5Ni-5Sn alloy after aging treatment. The sandwich structure and need-like phase that were observed by FESEM can contribute to clarify the morphology of Cu-Ni-Sn alloys.

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Relationship between microstructure and mechanical properties of a spinodally decomposing Cu-15Ni-8Sn alloy prepared by spray deposition

Cited by 40 publications

References 20 publications

Coherent Precipitation and Strengthening in Compositionally Complex Alloys: A Review

Coherent Precipitation and Strengthening in Compositionally Complex Alloys: A Review

Research Progress on Cu–15Ni–8Sn Alloys: The Effect of Microalloying and Heat Treatment on Microstructure and Properties

Effect of Ni Content on Microstructure and Characterization of Cu-Ni-Sn Alloys

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