Microstructure and mechanical properties of in-situ Al13Fe4/Al composites prepared by mechanical alloying and spark plasma sintering

Gu, Jian; Gu, Shitan; Xue, Lihong; Wu, Shusen; Yan, Yunjun

doi:10.1016/j.msea.2012.08.076

Cited by 48 publications

(22 citation statements)

References 43 publications

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“…The hardness of Fe-50%Al coating after milling increases with increasing milling time. It may be attributed to the reduction in the grain size of coating (as show in the Figure 2a-d) [18]. After milling time for 180 min, however, the hardness of Fe-50%Al is decreased.…”

Section: Methodsmentioning

confidence: 93%

“…The hardness of Fe-50%Al coating after milling higher than the hardness of Fe (90 Hv) [2] and pure Al (17.03 Hv) [20]. In this case, the difference in the hardness may be attributed to the grain size [18] of coating. The optical microscope images of Fe-50%Al coating after heat treatment indicate the existence of irregular cracks on the indented section ( Figure 6).…”

Section: Methodsmentioning

confidence: 99%

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Correlations between Structural and Hardness of Fe-50%Al Coating Prepared by Mechanical Alloying

Aryanto

Sudiro

2019

PISTON J.Tech.Eng

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Fe-50%Al coatings were deposited on the surface of low-carbon steel using mechanical alloying technique atdifferent milling times. The correlation between structure and hardness of coating before and after heat treatment wasinvestigated. At the milling time of less than 180 min, the coating has an elongated lamellar structure. The size of elongatedlamellar structure decreased with increasing milling times which led to an increase in the hardness value of coating. Afterheat treatment, the coating transformed to FeAl intermetallic phase with a denser structure and uniform in the composition. Itaffected the hardness of coating. The hardness value of all samples after heat treatment was higher than coating after milling.The hardness of coating was strongly influenced by the morphology and phase of coating.

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Section: Methodsmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Correlations between Structural and Hardness of Fe-50%Al Coating Prepared by Mechanical Alloying

Aryanto

Sudiro

2019

PISTON J.Tech.Eng

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“…27) Plastic deformation and interfacial properties of Al-Al 13 Fe 4 have been discussed for an in-situ composite consisting of Al matrix and Al 13 Fe 4 particles. 13,14,28) Also, it has been shown that Al 13 Fe 4 exhibits a high hardness of 815 HV, a density of 3.8 g/cm 3 , and an estimated surface energy of 2.04 J/m 2 . 20,29) Given such advantages of Al 13 Fe 4 , along with economic production methods of the compound, there is a strong interest in utilization of this compound for new application areas, where superior mechanical properties are important, in particular, high temperature properties.…”

Section: )mentioning

confidence: 99%

“…45) This could be attributed to the fact that, thermodynamically, solid solubility cannot be significantly extended by adding more Fe content after the Fe atoms reached maximum equilibrium solubility in the Al matrix during MA. 28) Thus, despite the fact that the hot press and hot extrusion processes were carried out for quite long periods of time and at high temperatures which could result in formation of new and unwanted phases throughout the mixture by taking safety protecting precautions during the processing of the composites such as continuous argon flow during milling and hot press, and protected environment during the extrusion 1239 Evaluating Microstructure and High-Temperature Shear Behavior of Hot Extruded Al-Al Fe Nanocomposite 13 4 process ® a uniform Al-Al 13 Fe 4 composition was achieved after extrusion.…”

Section: Microstructural Evolutionmentioning

confidence: 99%

Evaluating Microstructure and High-Temperature Shear Behavior of Hot Extruded Al-Al<sub>13</sub>Fe<sub>4</sub> Nanocomposite

Nemati

Emamy

2016

Mater. Trans.

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The microstructure and mechanical properties of extruded aluminum matrix composites reinforced with novel Al 13 Fe 4 complex metallic alloy (CMA) nano-particles were investigated. The large grained structure of the hot pressed matrix was refined after addition of Al 13 Fe 4 CMAs, the effect being more pronounced for Al-5 mass% Al 13 Fe 4 composite. The hot pressed specimens were subjected to uniaxial hot extrusion process (with a 9 : 1 ratio at 400°C). This had a great effect on the microstructural evolution of the composites. High-temperature shear punch test (SPT) was employed to investigate the effects of 110 mass% Al 13 Fe 4 additions on the microstructure and mechanical properties of the asextruded Al/Al 13 Fe 4 composite. The shear behavior of the alloys was investigated in the temperature range of 25350°C. Al-5 mass% Al 13 Fe 4 nanocomposite had the highest shear strength among all the materials tested at high temperature (150, 250 and 350°C), mainly due to the semiideal dispersion of the thermally stable Al 13 Fe 4 nano-particles, and the refined microstructure of the extruded specimen, which results in pronounced enhancement in mechanical properties. These thermally resistant particles are believed to increase the resistance of the composite against the applied shear stress in the deformation zone during the subjection of the material to SPT.

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“…One of the other benefits of this method is the possibility of producing bulk materials with densities close to their theoretical values. Such materials exhibit significantly improved mechanical properties [24,25,26,27,28,29,30,31,32,33]. For example, studies focusing on Al-based alloys prepared by this technique reporting a compressive strength of 1200 MPa have been published [25,29].…”

Section: Introductionmentioning

confidence: 99%

The Structure and Mechanical Properties of High-Strength Bulk Ultrafine-Grained Cobalt Prepared Using High-Energy Ball Milling in Combination with Spark Plasma Sintering

et al. 2016

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In this study, bulk ultrafine-grained and micro-crystalline cobalt was prepared using a combination of high-energy ball milling and subsequent spark plasma sintering. The average grain sizes of the ultrafine-grained and micro-crystalline materials were 200 nm and 1 μm, respectively. Mechanical properties such as the compressive yield strength, the ultimate compressive strength, the maximum compressive deformation and the Vickers hardness were studied and compared with those of a coarse-grained as-cast cobalt reference sample. The bulk ultrafine-grained sample showed an ultra-high compressive yield strength that was greater than 1 GPa, which is discussed with respect to the preparation technique and a structural investigation.

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Microstructure and mechanical properties of in-situ Al13Fe4/Al composites prepared by mechanical alloying and spark plasma sintering

Cited by 48 publications

References 43 publications

Correlations between Structural and Hardness of Fe-50%Al Coating Prepared by Mechanical Alloying

Correlations between Structural and Hardness of Fe-50%Al Coating Prepared by Mechanical Alloying

Evaluating Microstructure and High-Temperature Shear Behavior of Hot Extruded Al-Al<sub>13</sub>Fe<sub>4</sub> Nanocomposite

The Structure and Mechanical Properties of High-Strength Bulk Ultrafine-Grained Cobalt Prepared Using High-Energy Ball Milling in Combination with Spark Plasma Sintering

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