TY - JOUR T1 - Effect of high-pressure torsion on grain refinement, strength enhancement and uniform ductility of EZ magnesium alloy AU - Bryła, Krzysztof AU - Morgiel, Jerzy AU - Faryna, Marek AU - Edalati, Kaveh AU - Horita, Zenji PY - 2018/2/1 Y1
The Magnesium Technology 2020 symposium at the TMS 2020 Annual Meeting & Exhibition will open with a session of invited presentations on Monday morning. Following the keynote, related sessions will be held throughout the week as part of the Magnesium Technology symposium, one of the largest annual gatherings of magnesium specialists in the world.
Effect of solute addition on grain refinement in cast magnesium alloys. 1. Introduction: Magnesium is 30% lighter than aluminum and possesses excellent mechanical properties. It has higher weight to strength ratio, damping capacity, dimensional stability, impact and
alloy. 1.3 Grain Refinement of Light Alloys This study involves the grain refinement of light alloys like magnesium and aluminium. The use of this alloy plays an important role in achieving the relative grain size. The resulting grain size varies from few μm on
A polycrystalline Mg-3Al-1Zn was subjected to high plastic strains by applying accumulative back extrusion (ABE) process. Electron back ster diffraction analyses were used to explore the grain refinement mechanisms. A novel grain refinement trend was found
1/6/2017· Although the grain refinement techniques such as severe plastic deformation (SPD) has been widely used in recent decades to reduce the grain size to 100–1000 nm and enhance superplasticity 8,9
Grain refinement of pure magnesium using rolled Zirmax® master alloy (MG-33.3ZR) Qian, Ma, St John, David, Frost, Malcom and Barnett, Matthew 2003, Grain refinement of pure magnesium using rolled Zirmax® master alloy (MG-33.3ZR), in Magnesium technology 2003 : proceedings of the jointly sponsored by the Magnesium Committee of the Light Metals Division (LMD) and the Solidifiion …
Texture Randomization of AZ31 Magnesium Alloy Sheets for Improving the Cold Formability by a Coination of Rolling and High-Temperature Annealing Effect of Tool Materials on Dynamic Friction Characteristics and Microstructural Evolution at Elevated Temperature in Extruded AZ31 Magnesium Alloy
Tailoring grain refinement through thickness in magnesium alloy via stationary shoulder friction stir processing and copper backing plate 95/12/18 - با استفاده از افزونه دانلود فایرفاکس و کروم٬ چکیده مقالات به صورت خودکار تشخیص داده شده و دکمه دانلود فری پیپر در صفحه چکیده نمایش داده
Ultrasonic degassing & grain refinement of metal melts up to 1,800 C, can substantially improve the properties of castings, in particular, their microstructure and mechanical properties. Recently, new refinements to the technique using proprietary ultrasound
The extrusion/equal channel angular pressing (EX-ECAP) processing procedure, in which magnesium-based alloys are subjected to extrusion followed by ECAP, was applied to a Mg-7.5 pct Al-0.2 pct Zr alloy prepared by casting. Microstructural inspection showed
Abstract The initiation of dynamic recrystallization during hot deformation, its kinetics according to the Johnson–Mehl–Avrami–Kolmogorov model, and the resultant grain refinement in the Mg-3Gd-1Zn Home > International Journal of Materials Research > March 2016 > Dynamic recrystallization kinetics in Mg-3Gd-1Zn magnesium alloy durin
The effects of rare earth addition and hot extrusion process on the grain refinement of magnesium alloy were studied. The as-cast Mg-6Al-1Zn (AZ61) alloy had the average grain size of ~ 64 µm and its microstructure consisted of α-Mg and Mg17Al12 phase. By
Development of ductile magnesium alloys is key to their use in reducing the weight of vehicles and other appliions. Wu et al. tackle this issue by determining the underlying mechanisms in unprocessed magnesium alloys. Dilute amounts of solutes enhanced certain ductility-improving mechanisms over ones that cause brittle fracture. From this, the authors developed a theory that may be helpful
12/4/2016· Ultrasonic degassing & grain refinement in Molten Aluminium, Magnesium, Copper and Glass metal melts up to 1,800 ° C, can substantially improve the properties of …
Ti-B master alloy, has been successfully applied to study the potency of bismuth in pure magnesium. Prime Novelty Statement 1 The grain refinement potency of bismuth in magnesium Utsavi Joshia, 1, Hari Babu Nadendlab
Wire arc additive manufacturing (WAAM) offers a potential approach to fabrie large-scale magnesium alloy components with low cost and high efficiency, although this topic is yet to be reported in literature. In this study, WAAM is preliminarily applied to fabrie AZ31 magnesium. Fully dense AZ31 magnesium alloy components are successfully obtained. Meanwhile, to refine grains and obtain
Grain refinement behavior of copper alloys cast in permanent molds was investigated. This is one of the least studied subjects in copper alloy castings. Grain refinement is not widely practiced for leaded copper alloys cast in sand molds. Aluminum bronzes and high
Non-alloy magnesium can undergo cold deformation up to 5-10%. Addition 0.5wt%Zr yields a grain size refinement, which makes a cold deformation up to 30% possible. Above 220°C, hot deformation is possible, with certain preference of extrusion above rolling.
dynamic recrystallization, and grain refinement can be achieved relatively easily.  Therefore, we started the R&D by investigating the grain refinement behavior by dynamic recrystallization of the magnesium alloy continuous cast bars. 3.2 Investigation of the
The as-cast ZK60 Mg alloy ingot with mean grain size of 278 μm after solution treatment was subjected to severe plastic deformation by multi-pass hot rolling with decreasing temperatures. The process facilitated steady grain refinement by dynamic recrystallization with increasing rolling deformation, and the final grain size was reduced to 7.2 μm by 6 rolling passes.
Niobium-base master alloy improves grain refinement in magnesium-aluminum alloys March 10, 2016 Source: ASM International Brunel University, London, reports that a research team has found a patented niobium-base master alloy that not only fills the missing gap in grain refiners for magnesium alloys, but also offers significant advantages over titanium in aluminum-silicon alloys.
Grain refinement processing by severe deformation, coined Equal-Channel Angular Extrusion (ECAE) processing and conventional tube extrusion, is applied to AZ31 magnesium alloy. By a coination of ECAE processing and tube extrusion, a fabried tube, with outer and inner diameters of 2 mm and 1 mm, respectively, has fine, homogeneous, and equiaxed grain structure with an average grain …
Significant grain refinement and homogenization can be achieved in a single FSP pass leading to improved formability, especially at elevated temperatures. FSP is a solid-state process where the material within the processed zone undergoes intense plastic deformation resulting in dynamically recrystallized grain …
Mg-Al Alloy | Scientific.Net Abstract: Grain refinement is important for improving the microstructure and mechanical properties of magnesium alloys. Carbon inoculation is an effective method of grain refinement process for magnesium alloys containing aluminum.
Grain refinement due to complex twin formation in rapid hot forging of magnesium alloy
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract. The effect of microstructure refinement on corrosion of AE42 magnesium alloy was investigated. Electrochemical impedance spectroscopy in normal salinity solution (0.1M