Pinning of grain boundaries by second phase particles in equal-channel angularly pressed Cu–Fe–P alloy

Cao, H.; Min, Jinbiao; Sheng, Wu; Xian, Ai-Ping; Shang, Jian Ku

doi:10.1016/j.msea.2006.05.081

Cited by 53 publications

(27 citation statements)

References 26 publications

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“…Obtained results are in accordance with literature [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Enhanced mobility of dislocations in Al and Cu due to the lack of alloying elements to hinder the dislocation movement results in weakening of grain refinement.…”

Section: Pure Cu and Cufe2 Alloysupporting

confidence: 88%

“…The second group of non-ferrous materials, which play a key role in electric engineering are copper and copper alloys. In literature the effectiveness of SPD methods has been revealed for a pure Al [7][8][9][10][11][12][13], Al-Mg alloys [13,14], pure Cu [11,[13][14][15][16][17][18][19] and Cu-Fe [20] alloys. Recent works have demonstrated [21,22] that one of the method which can be used for SPD processing is rolling with cyclic movements of rolls (RCMR).…”

Section: Introductionmentioning

confidence: 99%

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Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

et al. 2016

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The results of the microstructure investigations of the pure Al and AlMg5 alloy and pure Cu and CuFe2 alloy after the application of severe plastic deformation implemented by rolling with the cyclic movement of the rolls are presented in this paper. The rolling with the cyclic movement of the rolls was carried out at values: the rolling rate v = 1 rpm, the frequency of rolls movement f = 1 Hz, the amplitude of rolls movement A = 1.6 mm. Maximal values of rolling reduction at 6 passes was ε h = 80%. The structure of the these materials was analyzed using scanning transmission electron microscope. The quantitative studies of the substructure was performed with MET-ILO software, on the basis of images acquired on scanning transmission electron microscope. Performed substructure investigations showed that using the rolling with the cyclic movement of the rolls method can refine the microstructure of these materials to the ultrafine scale.

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Section: Pure Cu and Cufe2 Alloysupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

et al. 2016

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“…The strengthening mechanism for Cu8Fe0.5Ag0.02P is that trace Ag refines the as-cast microstructure 5) and Fe 3 P precipitates inhibit the motion of Cu grain boundaries by typical secondary phase strengthening. 19,22) Therefore, fine as-cast microstructure produces small Fe filament spacing and the precipitated Fe 3 P particles pin the grain boundaries, which increases the strength of the composites. At the same time, extensive investigations showed that the electrical conductivity of CuFe in situ composites was primarily controlled by the resistivity of the Cu matrix, which could be portioned into the contribution of four scattering mechanism follows:…”

Section: Resultsmentioning

confidence: 99%

“…Kim et al 20,21) reported that Cu2.5Fe0.1P (mass%) alloys have particularly high strength and electrical conductivity with the precipitation of coarse Fe 3 P and fine £-Fe and ¡-Fe particles during heat treatment. Cao et al 22) observed the micro-hardness of deformed Cu2.2Fe0.085P (mass%) was enhanced due to the pinning effect caused by fine Fe 3 P particles. It is obvious that trace Ag or P can increase the strength and meanwhile the conductivity of CuFe composite.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Strength and Electrical Conductivity of Cu–8Fe Composite by Adding Trace Ag and P

et al. 2013

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Cu8Fe0.5Ag0.02P (mass%) in situ composites were fabricated by inductive melting and then the as-casted sample drew heavily at room temperature to refine the microstructure and optimize the mechanical and electrical properties. The microstructure evolution of the composite during drawing was investigated, while the tensile strengths and electrical conductivity of the as-drawn samples were measured. Comparing to Cu8Fe composite, the tensile strength and electrical conductivity were enhanced largely by adding trace Ag and P. The results show that trace Ag refines the primary Fe dendrites and promotes the precipitation of secondary phase Fe particles. Trace P reacts with the solid solution Fe atoms and then facilitates ellipsoid Fe 3 P particles precipitation. The mechanical strength and electrical conductivity of Cu8Fe 0.5Ag0.02P were improved obviously, which is attributed to the combined effects of trace Ag and P.

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“…It is well-known that the presence of second phase particles could potentially have a significant effect on the grain refinement [13][14][15][16][17]. No investigations have been performed however on the effect of second phase precipitates on grain refinement during (RCMR) in CuFe2 alloy.…”

Section: Introductionmentioning

confidence: 99%

Influence of Solution and Aging Treatment Conditions on the Formation of Ultrafine-Grained Structure of CuFe2 Alloy Processed by Rolling with Cyclic Movement of Rolls

Urbańczyk-Gucwa

Radwański

Rodak

2016

Archives of Metallurgy and Materials

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The effect of second phase particles on grain refinement in CuFe2 alloy has been investigated by using rolling with the cyclic movement of rolls (RCMR) method. Two different population of second phase particles of Fe: coherent, about 10 nm in diameter and about 100 nm in size were obtained by applying aging treatment followed at 500°C for 2 h and at 700°C for 24 h respectively. In addition, solution treated samples were deformed by RCMR method at the same parameters. The microstructures of the CuFe2 alloy were analyzed using light microscope (LM), electron backscattered diffraction (EBSD) microscope technique and scanning transmission electron microscope (STEM). The presence of high-density of coherent Fe particles in the matrix inhibits recovery process and in the result obtained grain/subgrain boundaries have diffused character and are weakly visible. The largest particles which are not coherent with the matrix act as an effective barrier against the boundary motion.

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Pinning of grain boundaries by second phase particles in equal-channel angularly pressed Cu–Fe–P alloy

Cited by 53 publications

References 26 publications

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

Enhanced Strength and Electrical Conductivity of Cu–8Fe Composite by Adding Trace Ag and P

Influence of Solution and Aging Treatment Conditions on the Formation of Ultrafine-Grained Structure of CuFe2 Alloy Processed by Rolling with Cyclic Movement of Rolls

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Pinning of grain boundaries by second phase particles in equal-channel angularly pressed Cu–Fe–P alloy

Cited by 53 publications

References 26 publications

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

Enhanced Strength and Electrical Conductivity of Cu&ndash;8Fe Composite by Adding Trace Ag and P

Influence of Solution and Aging Treatment Conditions on the Formation of Ultrafine-Grained Structure of CuFe2 Alloy Processed by Rolling with Cyclic Movement of Rolls

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Enhanced Strength and Electrical Conductivity of Cu–8Fe Composite by Adding Trace Ag and P