Results 31 to 40 of about 35,767 (354)
The effect of the austenite grain refinement on the tensile and impact properties of cast Hadfield steel [PDF]
Materials Research, 2018 This paper studied the effect of the austenite grain refinement on the tensile and impact properties of a cast Hadfield steel (12 % Mn, 1.2 %C and 0.65 % Si). The austenite grain refinement was obtained by hafnium inoculation.
Bianka Nani Venturelli +2 more
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Grain refinement efficiency of a new oxide-containing master alloy for aluminium casting alloys [PDF]
, 2014 In this study, grain refinement efficiency of a new oxide master alloy based on MgAl2O4 was demonstrated on an A357 alloy. The grain size of the reference alloy was reduced by 50-60% with the addition of the master alloy and introduction of ultrasonic ...
Dmitry G. Eskin +7 more
core +1 more source
Nature Communications, 2022 Strengthening of metals by grain refinement is limited by the inverse Hall-Petch effect. Here, the authors show nanograined metals can be strengthened by exhausting lattice dislocations via triggering of phase transformation at grain boundaries, instead ...
Shangshu Wu +9 more
doaj +1 more source
The grain refinement potency of bismuth in magnesium [PDF]
, 2016 Copyright © 2016 The Authors. A quantitative model was applied to analyse the grain refinement potency of bismuth in magnesium. The formation of potent Mg-Bi-O intermetallic phases at 0.4wt.% Bi were attributed to a noteworthy reduction in the average ...
Joshi, U +3 more
core +1 more source
Metals, 2016 It is high of commercial importance to generate the grain refinement in alloys during solidification by means of electromagnetic fields. Two typical patterns of electromagnetic fields, pulsed electric currents (ECP) and traveling magnetic field (TMF ...
Yunhu Zhang +8 more
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Microstructure and refinement mechanism of Al–5Ti–1B alloys
Fenmo yejin jishu, 2022 Two kinds of Al–5Ti–1B alloys were prepared by powder mixing + hot extrusion and powder mixing + gas atomization + hot extrusion, respectively. The microstructures of the Al–5Ti–1B alloys prepared by two kinds of processes were studied, and the grain ...
LI Yang +4 more
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Effect of Al addition on microstructure of AZ91D [PDF]
, 2014 Casting is a net shape or near net shape forming process so work-hardening will not be applicable for improving properties of magnesium cast alloys.
Joshi, U +3 more
core +1 more source
Processing of metal matrix composites under external fields and their application as grain refiner [PDF]
, 2014 In an attempt to develop an efficient grain refiner by application of external fields, aluminium-based metal matrix composite Al- Mg-Ti/TiB 2, has been processed by mechanical stirring and treated by external field such as ultrasonication.
Vadakke Madam, S +12 more
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Grain Refinement of Al-5Ti-0.62C-0.2Nd Grain Refiner for Commercial Pure Aluminum and Its Effect on Mechanical Properties [PDF]
Materials Research, 2018 It is well known that the mechanical properties of commercial pure Al are influenced by size of α-Al dendrites. In the present work, Al-5Ti-0.62C-0.2Nd grain refiner was prepared by a pure molten aluminum thermal explosion reaction, and its effect on ...
Wanwu Ding +6 more
doaj +1 more source
Crystals, 2023 Despite the dozens of earlier research verifications, the contribution of shearing of molten metallic alloys during their solidification to grain formation is still ambiguous.
Mahmoud Ahmadein +3 more
doaj +1 more source