Results 31 to 40 of about 1,479,805 (276)
The origins of spontaneous grain refinement in deeply undercooled metallic melts [PDF]
, 2016 Spontaneous grain refinement in undercooled metallic melts has been a topic of enduring interest within the solidification community since its discovery more than 50 years ago. Here we present a comparative study of the solidification microstructures and
Castle, EG, Cochrane, RF, Mullis, AM
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GRAIN REFINEMENT OF URANIUM BY ALLOYING [PDF]
, 1951 Binary alloys of uranium with 38 elements in the range 0.01 to 1.0 at.% were made. Three alloys havirg nominal compositions of 0.01, 0.1, and 1.0 at.% were made with most of the elements, and in addition, 12 ternary and quaternary alloys were made. The alloys were cast, rolled to 7/8-inch-diameter bars, heat treated, and examined for grain size. (auth)
Saller, H. A. +2 more
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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
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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 +50 more
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Results in Physics, 2019 The excellent grain refinement effectiveness and good electrical conductivity is difficult to be simultaneously obtained due to the influence of both the grain boundary and excessive Ti in the usually used refiners, such as Al-5Ti-1B master alloy.
Xuexia Xu +9 more
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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
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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 +3 more
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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 +43 more
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Effect of high-pressure rolling followed by laser processing on mechanical properties, microstructure and residual stress distribution in multi-pass welds of 304L stainless steel [PDF]
, 2016 Multi-pass fusion welding by a filler material (wire) is normally carried out to join thick steel sections used in most engineering applications. Multiple thermal cycles from a multi-pass weld resulted in a variable distribution of residual stress field ...
Ganguly, Supriyo +3 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 +5 more
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