Results 21 to 30 of about 1,498,183 (376)
Journal of Materials Research and Technology, 2023 The simultaneous improvement of strength and toughness with grain refinement is widely known. However, the literature lacks studies on the grain refinement effect on cleavage fracture toughness in multiphase steels containing detrimental brittle ...
V. Bertolo +7 more
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Grain refinement in a AlZnMgCuTi alloy by intensive melt shearing: A multi-step nucleation mechanism [PDF]
, 2011 This is a post-print version of the article. Copyright @ 2010 Elsevier B.V.Direct chill (DC) cast ingots of wrought Al alloys conventionally require the deliberate addition of a grain refiner to provide a uniform as-cast microstructure for the ...
Cao +35 more
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Grain Refinement of Alloys in Fusion-Based Additive Manufacturing Processes
Metallurgical and Materials Transactions. A, 2020 One of the less desirable aspects of fusion-based additive manufacturing is the propensity for coarse columnar grain structures crossing build layers to form.
Duyao Zhang +9 more
semanticscholar +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
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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.
Chen +13 more
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Criteria of grain refinement induced by ultrasonic melt treatment of aluminum alloys containing Zr and Ti [PDF]
, 2010 Copyright @ 2010 The Authors. This paper was published in Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 41(8), 2056 - 2066, and is made available as an electronic reprint with the permission of ASM International.
B.S. Murty +21 more
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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
doaj +1 more source
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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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 ...
Babu, NH +3 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
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