Structural evolutions of the Fe–40Al–5Cr powders during mechanical alloying and subsequent heat treatment

Liu, Haili; Tang, Wenming; Wang, Yuexia; Liu, Chao; Xu, Guangqing; Zhang, Zheng

doi:10.1016/j.jallcom.2010.07.130

Cited by 15 publications

(5 citation statements)

References 16 publications

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“…The Fe and Al element in the Fe-50%Al coating is separated when the milling time is less than 180 min. Liu et al show that an elongated lamellar of the Fe-40Al-5Cr powder revealed that the element is not reacted and difference in the composition [16]. The cross-section Fe-50%Al coating in this research supports that the Fe-Al element is not reacted and difference in the composition.…”

Section: Methodssupporting

confidence: 73%

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: Methodssupporting

confidence: 73%

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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“…XRD profiles of the annealed Fe–10Cr–3Al powder and SPSed pellet are shown in Figure 5 a. The peak broadening of the prominent peak of the annealed powder decreases with increasing annealing temperatures ( Figure 5 b), suggesting grain growth of the powder at the annealing temperatures [ 1 ].…”

Section: Resultsmentioning

confidence: 99%

“…In recent years, nanocrystalline (NC) materials are being widely investigated for their superior mechanical, physical, and oxidation resistance properties when compared to their microcrystalline (MC) counterparts [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. NC materials, such as Fe and Fe–Cr alloys, have been synthesized by several researchers [ 6 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ] using different methods, such as electro-deposition [ 19 ], severe plastic deformation [ 13 ], and powder metallurgy [ 14 , 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…Advantages include low materials loss (<5%), less processing steps, low processing cost for bulk production and near-net-shape production over other competing process [ 23 ]. Powder metallurgy processing by high-energy ball milling that has been employed for the synthesis of NC powder of Fe [ 2 , 4 , 24 ] and Fe-alloys [ 1 , 11 , 25 , 26 , 27 ] has provided the ability to economically synthesize bulk quantities of powder. During high-energy ball milling, the powder undergoes cold welding and fragmentation upon impact with the balls, as well as develops high stresses, strain-hardening, and embrittlement that assist fragmentation [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

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Structural Evolution during Milling, Annealing, and Rapid Consolidation of Nanocrystalline Fe–10Cr–3Al Powder

et al. 2017

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Structural changes during the deformation-induced synthesis of nanocrystalline Fe–10Cr–3Al alloy powder via high-energy ball milling followed by annealing and rapid consolidation by spark plasma sintering were investigated. Reduction in crystallite size was observed during the synthesis, which was associated with the lattice expansion and rise in dislocation density, reflecting the generation of the excess grain boundary interfacial energy and the excess free volume. Subsequent annealing led to the exponential growth of the crystallites with a concomitant drop in the dislocation density. The rapid consolidation of the as-synthesized nanocrystalline alloy powder by the spark plasma sintering, on the other hand, showed only a limited grain growth due to the reduction of processing time for the consolidation by about 95% when compared to annealing at the same temperature.

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“…Mechanical alloying is a high-energy ball milling technology widely used in the fabrication of nanomaterials, intermetallic compounds and supersaturated solid solutions (Liu et al, 2010;Tang et al, 2010). At present, there are few reports on the fabrication of FeS/Cu-Bi copper-based bearing materials and their properties by mechanical alloying.…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of FeS/Cu-Bi copper-based bearing materials fabricated by mechanical alloying

Yin

Zhang

et al. 2019

ILT

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Purpose This paper aims to fabricate a FeS/Cu-Bi copper-based lead-free bearing material to maintain good friction-reducing and anti-adhesive properties under boundary lubrication conditions. Design/methodology/approach The materials were fabricated by mechanical alloying and powder metallurgy and tested under dry friction conditions using HDM-20 wear tester. Findings The results show that mechanical alloying can improve the antifriction and wear resistance of the materials. The 6 per cent FeS and 6 per cent Bi in the copper-based bearing materials fabricated by mechanical alloying have a better synergism which contributes to the friction and wear properties of copper matrix. Originality/value This new approach solves the problems of Bi and FeS mutual segmentation, mutual agglomeration and poor interface bonding.

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Structural evolutions of the Fe–40Al–5Cr powders during mechanical alloying and subsequent heat treatment

Cited by 15 publications

References 16 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

Structural Evolution during Milling, Annealing, and Rapid Consolidation of Nanocrystalline Fe–10Cr–3Al Powder

Tribological properties of FeS/Cu-Bi copper-based bearing materials fabricated by mechanical alloying

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