Microstructure and properties of Cu-10 wt% Al bronze obtained by high-energy mechanical milling and spark plasma sintering

Dudina, Dina V.; Grigoreva, T. F.; Kvashnin, Vyacheslav I.; Devyatkina, E. T.; Восмериков, С. В.; Ukhina, Arina V.; Novoselov, Aleksey N.; Леган, М. А.; Esikov, Maksim A.; Lukyanov, Yaroslav L.; Анисимов, А. Н.; Ковалева, С. А.; Lyakhov, N. Z.

doi:10.1016/j.matlet.2022.131671

Cited by 12 publications

(5 citation statements)

References 7 publications

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“…In the alloys formed from the fine Al particles, aluminum fully reacted with copper to form the Cu 9 Al 4 phase and Cu(Al) solid solutions (Figure 2b-d). As aluminum dissolves in copper, the lattice parameter of the latter increases [8], and its XRD peaks shift to lower angles. The presence of asymmetrical lines in the XRD patterns of the alloy (Figure 2b-d) is due to the presence of reflections from Cu(Al) solid solutions.…”

Section: Resultsmentioning

confidence: 99%

“…The details of the preparation of the mechanically alloyed powder via high-energy ball milling can be found in ref. [8].…”

Section: Methodsmentioning

confidence: 99%

“…Recently, in laboratories, the powder metallurgy approach has been successfully applied to the formation of Cu-Al alloys to explore the possibilities of producing materials with fine grain sizes and different alloying levels [5][6][7][8][9][10][11]. Shaik and Golla [5] produced Cu-15 wt.% Al alloys by mechanical milling and hot pressing.…”

Section: Introductionmentioning

confidence: 99%

“…In these alloys, a high hardness and a low friction coefficient (equal to 0.3) in a pair with steel can be achieved [6]. In our previous work, we reported the properties of the Cu-10 wt.% Al bronze produced by sintering of a mechanically alloyed powder, which consisted of a solid solution as a major phase and Cu 9 Al 4 as a minor phase [8]. Spark plasma sintering (SPS) [16][17][18] was selected as a consolidation method.…”

Section: Introductionmentioning

confidence: 99%

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Cu-10 wt.% Al Alloys Produced by Spark Plasma Sintering of Powder Blends and a Mechanically Alloyed Mixture: A Comparative Investigation

Ondar,

Dudina,

Grigoreva

et al. 2023

Powders

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Cu–Al bronzes are interesting metallic materials, demonstrating higher hardness, higher wear resistance, higher corrosion resistance and a lower friction coefficient as compared with unalloyed copper. The powder metallurgy approach to the fabrication of these alloys presents opportunities to tailor their phase composition and grain size. In the present work, the structural characteristics, phase composition and properties of Cu-10 wt.% Al alloys obtained by spark plasma sintering (SPS) of powder blends and a powder obtained by mechanical alloying (based on Cu(Al) solid solution) are reported. Alloys with different interaction degrees between the metals were obtained by SPS. The blends demonstrated better sinterability than the mechanically alloyed powder: a nearly fully dense alloy was obtained by SPS of the blend at 480 °C, whereas a temperature of 800 °C was necessary to consolidate the mechanically alloyed powder. The hardness and electrical conductivity of the sintered alloys were comparatively analyzed. It was shown that the Cu-10 wt.% Al alloys obtained without the mechanical alloying stage possess hardness and electrical conductivity comparable to those of the alloys obtained from the mechanically milled powder.

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Section: Resultsmentioning

confidence: 99%

“…The details of the preparation of the mechanically alloyed powder via high-energy ball milling can be found in ref. [8].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cu-10 wt.% Al Alloys Produced by Spark Plasma Sintering of Powder Blends and a Mechanically Alloyed Mixture: A Comparative Investigation

Ondar,

Dudina,

Grigoreva

et al. 2023

Powders

Self Cite

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“…High energy milling of metallic powder mixtures has established itself as a reliable technique to alloy a wide range of elemental components [15][16][17][18][19]. The advantage of this type of homogenization and mixing is due to the fact that the process takes place in the solid phase of all powder components.…”

Section: High Energy Milling and Nanocrystalline/amorphous Metalsmentioning

confidence: 99%

Modification of 316L steel powders with bronze using high energy ball milling for use as a binder component in PBF-LB/M printing of diamond-metal matrix composites

Tillmann,

Ferreira

2023

Preprint

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For the processing of diamond-metal matrix composites, the powder bed fusion using a laser for metals (PBF-LB/M), represents a new promising method for the additive manufacturing of diamond tools for concrete and rock machining, even with more complicated geometries. Previous research activities show a strong tendency for cracking and delamination during the construction process of the samples. This behavior is caused by thermal residual stresses associated with the embedded diamonds. To control these negative effects on the process side, the volume energy density is reduced accordingly, which, however, led to increased pore formation. This publication deals with an approach on the material side to modify a 316L stainless steel base powder with an addition of 20 wt% bronze via a high energy ball milling (HEBM) process in such a way that a homogeneous solid solution phase is created. A significantly increasing of the melting interval and a decreasing of both solidus and liquidus temperature was observed, which can reduce pore formation in the PBF-LB/M-process . In addition, XRD-diffractometry and SEM/EDS-analysis showed that the homogeneous solid solution phase of this alloyed powder segregates again into Fe- and Cu-rich phases when heated up to the melting point.

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Machine Learning Based Sintered Density Prediction of Bronze Processed by Powder Metallurgy Route

2022

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Microstructure and properties of Cu-10 wt% Al bronze obtained by high-energy mechanical milling and spark plasma sintering

Cited by 12 publications

References 7 publications

Cu-10 wt.% Al Alloys Produced by Spark Plasma Sintering of Powder Blends and a Mechanically Alloyed Mixture: A Comparative Investigation

Cu-10 wt.% Al Alloys Produced by Spark Plasma Sintering of Powder Blends and a Mechanically Alloyed Mixture: A Comparative Investigation

Modification of 316L steel powders with bronze using high energy ball milling for use as a binder component in PBF-LB/M printing of diamond-metal matrix composites

Machine Learning Based Sintered Density Prediction of Bronze Processed by Powder Metallurgy Route

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