Results 31 to 40 of about 135,445 (331)

Mechanisms of enhanced heterogeneous nucleation during solidification in binary Al-Mg alloys [PDF]

, 2012
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 ElsevierThe mechanisms involved in the grain refinement of Al–Mg alloys through varying the Mg content and applying ...
Anson, Atamanenko, Avedesian, Bergsmark, Bramfitt, Cao, Chai, Cochran, Contreras, Delannay, Desnain, Easton, Easton, Easton, Fan, Fan, Fan, Gibbs, Goldak, Greer, Greer, H.-T. Li, Ha, Haginoya, Impey, Johnsson, Johnsson, Johnsson, Jones, Khalifa, Korol’kov, Li, Maxwell, Mc Cartney, Men, Men, Murty, Nadella, Pai, Pilling, Quested, Scamans, Shackelford, Smialek, Surla, Thiele, Trumble, Xu, Y. Wang, Yu, Z. Fan   +50 more
core   +1 more source

The Mechanism of Inhomogeneous Grain Refinement in a NiTiFe Shape Memory Alloy Subjected to Single-Pass Equal-Channel Angular Extrusion

Metals, 2017
Based on electron backscattered diffraction analysis and transmission electron microscopy observation, the mechanism of inhomogeneous grain refinement in a NiTiFe shape memory alloy (SMA) subjected to single-pass equal-channel angular extrusion (ECAE ...
Yanqiu Zhang, Shuyong Jiang
doaj   +1 more source

Grain refinement of Al-Mg-Sc alloy by ultrasonic treatment [PDF]

, 2015
In foundry practice, ultrasonic treatment has been used as an efficient technique to achieve grain refinement in aluminium and magnesium alloys. This article shows the strong effect of pouring temperature and ultrasonic treatment at various temperatures ...
A. L. Greer, A. L. Greer, A. M. P. Pinto, A. Pisch, A. Ramirez, B. Cantor, B. S. Murty, D. Gao, E. A. Marquis, G. I. Eskin, G. I. Eskin, H. K. Feng, H. Puga, H. Puga, H. Puga, H. T. Li, H. Xu, J. Barbosa, J. D. Hunt, K. Xia, M. A. Easton, M. Johnsson, M. Khosro Aghayani, M. Qian, M. Qian, N. Q. Tuan, O. V. Abramov, P. S. Mohanty, R. Abbaschian, R. Haghayeghi, R. Haghayeghi, R. Sawtell, S. Costa, S. Lathabai, S. Nafisi, S. R. Yu, S. Zhang, U. Patakham, W. G. Zhang, W. Khalifa, X. Jian, X. Jian, X. Liu, Y. L. Li   +43 more
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Texture evolution in biocompatible Mg-Y-Re alloy after friction stir processing [PDF]

, 2019
The presented study deals with the investigation of biocompatible WE 43 Mg-based alloy processed via the combination of rotary swaging (RS) and friction stir processing (FSP) at three different rotational speeds of 400 RPM, 800 RPM, and 1200 RPM.
Dvořák, Jiří, Kocich, Radim, Král, Petr, Kunčická, Lenka   +3 more
core   +1 more source

Enhanced heterogeneous nucleation on oxides in Al alloys by intensive shearing [PDF]

, 2012
Oxides, in liquid aluminium alloys, can cause severe difficulties during casting, contribute to the formation of cast defects and degrade the mechanical properties of cast components.
Davis J R, H T Li, Impey S A, Li H T, Sigworth G K, Timelli G, Y Wang, Z Fan   +7 more
core   +1 more source

Competition for Nucleation and Grain Initiation during Solidification

Metals, 2022
Without the addition of any grain refiner, the inclusion particles in a melt will induce heterogeneous nucleation and grain initiation during the solidification of metallic materials.
Feng Gao, Zhongyun Fan
doaj   +1 more source

Development Of Al-B-C Master Alloy Under External Fields [PDF]

, 2015
This study investigates the application of external fields in the development of an Al-B-C alloy, with the aim of synthesizing in situ Al3BC particles. A combination of ultrasonic cavitation and distributive mixing was applied for uniform dispersion of ...
A. Rogers, B. Bramfitt, B. Lee, Dmitry G. Eskin, G. Arslan, G. Eskin, G. Ma, Hari Babu Nadendla, I. Ibrahim, I. Stone, J. Curtis, J. Lewandowski, J. Wang, K. Lee, M. Zhang, N. Aniban, N. Barekar, N. Harnby, P. Karnezis, R. Riedel, S. Liu, S. Madam, S. Ray, Sreekumar VadakkeMadam, T. Clyne, Utsavi Joshi, W. Spitzig, W. Tian, Z. Luo   +28 more
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EBSD study on magnetic field altering crystal texture and grain growth during laser-hybrid welding

Materials & Design, 2022
In this study, evolutions of austenite and ferrite microstructures and relevant variations of performances were analyzed during laser-arc welding 316L austenitic stainless steel with a magnetic field. For austenite grains, the magnetic field gave rise to
Chang Hu, Chunming Wang, Xiuquan Ma, Zhengwu Zhu, Ping Jiang, Gaoyang Mi   +5 more
doaj   +1 more source

Mechanisms of grain refinement by intensive shearing of AZ91 alloy melt [PDF]

, 2010
The official published version of the article can be accessed at the link below.It has been demonstrated recently that intensive melt shearing can be an effective approach to the grain refinement of both shape casting and continuous casting of Mg alloys.
Avedesian, B. Jiang, Backerud, Bayandorian, Burden, Byun, Cao, Cao, Christian, Donnelly, Emley, Fan, Fan, Granger, Greer, Günther, H. Men, Hitchcock, Hunt, Jones, Jones, Kim, Kim, Maltais, Maxwell, McCartney, Nafisi, Nelson, O’Reilly, Quested, Quested, Reed-Hill, St. John, Tassa, Tiner, Turnbull, Wang, Z. Fan, Zhang   +38 more
core   +1 more source

Thermomechanical Grain Refinement in AA6082-T6 Thin Plates under Bobbin Friction Stir Welding

Metals, 2018
Bobbin friction stir welding (BFSW), with its fully penetrated pin and double-sided shoulder, can provide high rates of heat generation. This produces solid-state thermo-mechanical grain refinement.
Abbas Tamadon, Dirk J. Pons, Kamil Sued, Don Clucas   +3 more
doaj   +1 more source