Double mechanical alloying of Al5wt.%Fe4wt.%Mn

Brun, Pierre Le; Froyen, Ludo; Delaey, L.

doi:10.1016/0921-5093(92)90101-6

Cited by 16 publications

(7 citation statements)

References 14 publications

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“…(1), dotted line, for comparison. Similar trajectories were obtained by other authors [5,14]. The differences existing with the experimentally recorded ones could be explained by sliding of the balls [14].…”

Section: Movement Of a Single Ball Into The Vialsupporting

confidence: 88%

“…Moreover, the trajectory described by this single ball was found independent of the rotational speed [14]. These two features, as it will be shown in the following section of this paper, might lead to a cubic law for the estimated power transferred to the powder under a single ball approach.…”

Section: Introductionmentioning

confidence: 88%

“…Generally, the only interaction to be considered to estimate the energy transferred is collision, the Friction region being described by Le Brun et al [14] out of consideration. In this study, estimation is given for the energy transferred when the ball is in contact with the vial wall by compression (as the normal force increases) and shearing of the powder in-between.…”

Section: Estimation Of the Dependence Of The Energy Transfer On The Fmentioning

confidence: 99%

“…Kinematical analyses have been also extensively studied by the group of Gaffet [8e11], as well as by other groups [12e17], in order to estimate the energy transferred to the powder by the grinding media. In particular, Le Brun et al [14] describe the existence of three different regions in terms of the motion of the ball into the vial and characterized by the value of the ratio between the rotational speed of the vial and that of the main disk: Chaotic, Impact þ Friction and Friction regions, being most of the commercial planetary mills in the Impact þ Friction region.…”

Section: Introductionmentioning

confidence: 99%

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An equivalent time approach for scaling the mechanical alloying processes

et al. 2008

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Section: Movement Of a Single Ball Into The Vialsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 88%

Section: Estimation Of the Dependence Of The Energy Transfer On The Fmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An equivalent time approach for scaling the mechanical alloying processes

et al. 2008

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“…6,10 Some work has also been performed to mostly evaluate the effect of the content of PCA on the average particle size and the particle size distribution of the mechanically milled metallic powders. [12][13][14] In addition to process variables, the composition of the starting powder is also important to the mechanical milling of metallic powders. In this regard, the effect of ceramic reinforcements on the mechanical milling of aluminium and its alloys has been studied.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of mechanical milling process for production of AA 7075/(SiC or TiB₂) composite powders

et al. 2012

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Abstract:The present work concerns the processing of composite powders based on 7075 aluminium alloy by mechanical milling. A premixed powder (Alumix 431D, Ecka Granules, Germany) was used as the matrix material, and two different ceramic reinforcements (SiC and TiB 2 ) were chosen as reinforcements. The main objective was to evaluate the effect of the content and addition method of the process control agent as well as the content and type of reinforcement on the microstructural and morphological evolutions of the powder particles during milling process and the as milled properties of the processed materials. Results showed that regardless of the starting composition, alloying took place through three stages, in which deformation, cold welding and fracturing of powder particles were the main mechanisms involved respectively. The mechanically milled composite powders showed a fine and homogenous distribution of reinforcement particles. A higher content of reinforcement resulted in a lower crystalline size for the milled powders (,18 nm for composite powders containing 15 vol.-% ceramic particles).

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