• Number :

    0086-21-58386256

  • Address :

    Pudong new district, Shanghai, China.

ball milling alloy

Improving mechanical properties of nano-sized TiC particle ...

The cold working effect, which is the nature of the ball milling process, resulted in texture formation in metals and metal-based alloy crystal structures. The texture, which is characteristic of fcc metals [ 74, 76 ] in the rolling process, is eventually initiated by excessive plastic deformation [ 77, 78 ].

Ball - Harvey Tool

Variable Helix End Mills for Aluminum Alloys - Ball Fully stocked in as many as three different coating styles: uncoated, TiB2 coated, and Amorphous Diamond coated. Fully stocked tool optimized for aluminum and aluminum alloys with excellent results in copper, brass, and bronze alloys.

Effective high-energy ball milling in air of Fe65Co35 alloys

Nanocrystalline Fe100−xCox (x = 20, 35, 50, 60) alloys have been prepared by mechanical alloying of Fe and Co powders via high energy ball milling. The alloy formation process and microstructure ...

Cu–Ti–C alloy with high strength and high electrical ...

Cu–Ti–C alloy was prepared by multiple ball-milling processes. • Both good electrical conductivity and high strength were obtained. • Additions of C and Ti in equal molar amounts led to a good balance of properties. • C addition decreased the amount of Ti in the matrix. • Homogeneously distributed nanocarbides obtained increased the strength.

Microstructural evolution during controlled ball milling ...

Two Mg–Ni alloys with 27.9±11.1 and 57.5±0.8 at% Ni, fabricated by ingot metallurgy (IM) and containing ∼9 and ∼79 vol% of the MgNi2 phase, respectively, were ball (mechanically) milled in ...

Mechanical behavior and microstructure control of the …

The ball milling influences the mechanical behaviors of the alloy via tuning the grain size distribution. Abstract Element substitution by light, economic, and innoxious components has been a promising strategy to improve the mechanical performances of Ti alloys.

Effects of Ball Milling Processing Conditions and Alloy ...

The effects of processing parameters in ball milling and the different behaviors of Cu-Nb and Cu-Mo alloys during milling were investigated. High powder yields can be obtained by changing the BPR value and ball size distribution and no …

Synthesis and characterization of shape memory Nano alloy ...

Synthesis and characterization of shape memory Nano alloy, Cu74Zn22Al4 (wt %) using high energy ball milling. Sujit Kumar Verma1, B.S.S. Daniel1, 2 1Department of Mechanical Engineering GLA University Mathura, U.P., India. 1Centre of Nanotechnology, 2Department of Metallurgical and Materials Engineering, Indian Institute of

Formation of amorphous state by ball milling and ...

For Al-Ti binary alloys, full amorphization has been obtained after different milling times depending on the type of milling device: 500 h if using a low energy conventional horizontal ball mill [1] and 40 h if using a high energy Fritsch Pulverisette planetary ball mill [2]. According to [3–5] a

High energy ball-milling preparation of Co–B amorphous ...

Until 2008, a nanocrystalline Co–B alloy obtained by ball milling method shown a reversible discharge capacity of around 238 mAh/g at moderately high rate of 130 mA/g [27]. Because the discharge capacity of ball milled Co–B alloy was low, there was much room for making progress on the ball milled Co–B alloy with high discharge capacity.

High-energy ball milling of intermetallic Ti-Cu alloys for ...

In this work, oxide nanoparticles were prepared by high-energy ball milling of Ti-Cu alloys followed by a controlled oxidation process. Alloys of the Ti-Cu system Ti-50Cu, Ti-57Cu, and Ti-65Cu (in wt.%) prepared by arc melting were selected considering they provide different starting brittle intermetallic phases before milling.

Effects of ball milling time on porous Ti 3Ag alloy and ...

under 600 °C, Ti−3Ag alloy is a very suitable material for implant application. A special powder metallurgy method was used to prepare the porous Ti−3Ag alloys [25]. The ball milling time is a key factor in powder refining [26], which directly affects the surface energy of the powders. In this work, four different ball milling time were ...

Best way to determine the ball-to-powder ratio in ball ...

The maximum power draw in ball mill is when ball bed is 35-40 % by volume in whole empty mill volume. Considering that ball bed has a porosity of …

Insertion compounds and composites made by ball milling ...

Ball milling-driven formation of Na-based alloys. Na 3 P powders were prepared by adding stoichiometric amounts of Na-lumps and red phosphorous powder into a …

(PDF) Effect of ball-milling conditions on microstructure ...

The effects of pre-strain, recovery powders which occurred during ball milling. After 0 h ball temperature, and bending deformation on shape memory effect milling, however, elemental Fe, Mn, Si, and Cr powders in an Fe–Mn–Si–Cr–Ni alloy. J Alloy Compd. 2008;475:145–50. were seen to be deformed and then to be agglomerated. By Wang XX ...

The Effect of Milling Time and Speed on Solid Solubility ...

The effect of milling time and speed on solid solubility of V in Al and grain refinement was studied. High-energy ball milling was used to produce Al-xV (x = 2, 5, and 10 at.%) alloys at milling speeds of 280 and 350 RPM. The ball-milling time was varied from 10 to 100 hours. The ball-milled alloys were consolidated under uniaxial pressure of 3GPa at room temperature. The solid solubility of …

Performance of Al–5Ti–1B Master Alloy After Ball Milling ...

Hot tearing of Al–7Si–3Cu alloys with addition of as received Al–5Ti–1B grain refiner and ball milled grain refiner have been studied with constrained mould casting to investigate the effect of these additions on hot tear resistance. Al–5Ti–1B master alloy contains TiAl3 and sub-microscopic TiB2 particles of sizes, 20–80 and 0.5–2 µm respectively. After ball milling of Al ...

Phase, microstructure and mechanical properties …

The phase transition, microstructure evaluation and mechanical properties of AlCoCrFeNi alloy during mechanical ball milling were studied. The results show that the content of FCC phase decreases gradually with increasing milling time to 20 h. The amorphous phase can be obtained completely when extending the milling time to 84 h.

Effect of Ball Milling on the Electrochemical Properties ...

Effect of Ball Milling on the Electrochemical Properties of La0.7(Mg0.25Ti0.05)(Ni0.85Co0.15)3.5 Hydrogen Storage Alloy Shujun Qiu1,2, Xingyu Ma1, Errui Wang1, Jianling Huang1, Hailiang Chu1,2,*, Yongjin Zou1,2, Cuili Xiang1,2, Fen Xu1,2 and Lixian Sun1,2 1Guangxi Key Laboratory of Information Materials, School of Materials Science and Engineering, Guilin University of Electronic

Study on surface work hardening of titanium alloy milled ...

A study of research on the surface quality of titanium alloy with the micro-textured ball-end milling cutter has shown that the surface roughness value of the workpiece is the smallest when the texture is 110 μm from the cutting edge and the offset angle is 0.4° . The too large or too small distance between the micro-texture and the cutting ...

Effect of ball-milling process in combination with the ...

When the ball-milling time is less than 48 h, no V 2 O 3 particle is observed, and when the ball-milling time is up to 60 h, black granular V 2 O 3 particles can be observed in the two alloys. The black granular particles are uniformly distributed in the matrixes, suggesting the highly active element V reacted with O 2 and formed the V 2 O 3 in ...

Refractory TaTiNb, TaTiNbZr, and TaTiNbZrX (X = Mo, W ...

Ball milling was run at rotation speeds of sun wheel/jars: 694/1388 rpm. Overall HEBM time ( t) for all studied TaTiNb-based powder blends was 60 min (55 min in Ar and 5 min in C 2 H 5 OH). Starting and milled TaTiNb, TaTiNbZr, and TaTiNbZrX (X = Mo, W) powders were SPS-consolidated in a vacuum in a Labox 650 facility (Sinter Land, Japan).

Mechanical Milling: a Top Down Approach for the Synthesis ...

The rare earth doped powder with grain size of 8.45 nm was obtained after 45 h ball milling. The Fe 48 Co 48 V 4 alloy was synthesized by B. Chitsazanet al[81] in a planetary high-energy ball-mill under an argon atmosphere. Inter-metallic Co 3 V was also observed during the mechanical alloying. The lattice parameter decreased up to 55 h of ...

Ball Milling of Tungsten Alloys | Request PDF

Abstract. High energy ball-milling with a planetary mill has been used so as to fabricate powders of elemental tungsten or of an yttria dispersed tungsten alloy. The effects of some processing ...

Mechanical alloying behavior of Nb–Ti–Si-based alloy made ...

The alloy particles are gradually refined and their shapes become globular with the increase in milling time. The diffraction peaks of Nb solid solution (Nbss) phase shift toward lower 2θ angles during ball milling from 2 to 5 h, and after that Nbss diffraction peaks shift toward higher 2θ angles with the increase in milling time from 5 to 70 ...

Effect of ball milling strategy (milling device for ...

Ball milling of Mg alloy activates its Mg matrix ( i.e. crystallites and particles size decrease, Cf Table 2) which reacts with the hydrogen of the milling chamber to form β-MgH 2. The amount of MgH 2 increases from 9 wt.% to 24 wt.% by prolonging the milling from 35 h to 100 h ( …

Metals | Free Full-Text | High-Energy Ball Milling and ...

Nanocrystalline powder of the CoCrFeNiAl high-entropy alloy was produced by high-energy ball milling (HEBM) and consolidated by spark plasma sintering (SPS). Microstructure and crystal structure transformations occurring in the course of HEBM and SPS processes were explored by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-Rays Diffraction (XRD) …

Design and Performance of Ball Milling for Powder ...

Volume of aluminum= mass/density=3.70×10-5 m3 Volume of Aluminum Oxide=7.59×10-7 m3. The mass of the balls used in the ball milling jar is generally 10 to 15 times the mass of powders are used [9]. Therefore by considering 10 times the mass of …

INFLUNCE OF MILLING TIME AND BALL-TO-POWDER RATIO …

35wt.%Mn biodegradable alloy. The alloy was synthesized by means of ball milling technique and traditional cold pressing and sintering. The milled alloy exhibited higher hardness, enhanced compression strength, lower rate of corrosion, improved cell adhesion, as …

Preparation of TiAl alloy powder by high-energy ball ...

Ball milling. High-energy ball milling as a powder preparing technology was applied in preparing the TiAl alloy powders, which can shorten the diffusion distance between titanium and aluminum adequately and refine the grain size. This will increase the speed of diffusion reaction.

Mechanical Milling: a Top Down Approach for the Synthesis ...

Among all top down approaches, high energy ball milling, has been widely exploited for the synthesis of various nanomaterials, nanograins, nanoalloy, nanocomposites and nano - quasicrystalline materials. Mechanical alloying techniques have been utilized to produce amorphous and nanocrystalline alloys as well as metal/non-metal nano-

Investigation of the magnetic properties and fracture ...

During high energy ball milling, the Zr element in the master alloy (MQP-S) could not react with other elements, since it is hard to pulverize, even when ZrO 2 milling media is used. This could promote the precipitation of high content Zr from the Nd-rich and Nd 2 Fe 14 B matrix phases in the grain boundary during high energy ball milling.

Effect of aging and ball milling on the phase ...

Zr8 alloys were mechanically crushed to a size of <3 mm and then ball milled for 0.5 h in a QM-3A vibration ball mill with hardened steel vial and balls in a ball-to-powder ratio of 10: 1. The acetone was added as the milling medium and the milling speed was 1400 rpm/min. Finally the as-milled powders were annealed at 800 C for 2 h in vacuum.

Join Our Newsletter