Results 31 to 40 of about 4,093 (217)
Metals, 2020 This study investigates three processes of multidirectional forging (MDF), namely, closed MDF (CMDF), single-open MDF, and double-open MDF, by using a constitutive equation and a dynamic recrystallization model of hot deformation of the GH4169 superalloy.
Yongbo Jin +5 more
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Static grain growth in an austenitic stainless steel subjected to intense plastic straining [PDF]
, 2014 The post-dynamic recrystallization of an ultrafine grained 304-type austenitic stainless steel was studied during annealing at 800 and 1000°C for 7.5 to 480 minutes.
Belyakov, A. +2 more
core +1 more source
Σ3 CSL boundary distributions in an austenitic stainless steel subjected to multidirectional forging followed by annealing [PDF]
, 2014 The effect of processing and annealing temperatures on the grain boundary characters in the ultrafine-grained structure of a 304-type austenitic stainless steel was studied.
Andrey Belyakov +5 more
core +1 more source
Microstructural evolution of Mg-7Al-2Sn Mg alloy during multi-directional impact forging
Journal of Magnesium and Alloys, 2015 Multi-directional impact forging (MDIF) was applied to a Mg-7Al-2Sn (wt.%) Mg alloy to investigate its effect on the microstructural evolution. MDIF process exhibited high grain refinement efficiency.
M.G. Jiang, H. Yan, L. Gao, R.S. Chen
doaj +1 more source
Успехи физики металлов, 2022 The nitriding process of the coarse-grained and fine-grained pure titanium proceeded by multidirectional forging technique has been investigated at temperatures of 623, 673, and 723 K.
J. M. Windajanti, M. S. Rajapadni, D. J. D. H. Santjojo, M. A. Pamungkas, A. Abdurrouf, and T. Aizawa
doaj +1 more source
Ultrafine grain development in copper during multidirectional forging at 195 K
Philosophical Magazine Letters, 2007 Strain-induced evolution of ultrafine grains in pure copper was studied in multidirectional forging (MDF) at 195 K. The stress–strain behaviour was characterized by rapid strain hardening during early processing and the rate of strain hardening gradually decreased with straining, leading to an apparent steady-state flow at large cumulative strains of ...
C. Kobayashi +3 more
openaire +1 more source
Grain growth behaviour of an AISI 422 martensitic stainless steel after hot deformation process [PDF]
, 2018 The metadynamic softening behaviour and grain size refinement of an AISI 422 martensitic stainless steel in the temperature range of 950–1150°C was investigated by double-hit compression tests.
Ahmadabadi, R. Mohammadi +3 more
core +2 more sources
Grain refinement of magnesium alloys by dynamic recrystallization (DRX): A review
Journal of Materials Research and Technology, 2023 For elevated-temperature thermomechanical processing, the occurrence of recrystallization during straining is known as dynamic recrystallization (DRX), which usually happens in Mg alloys during practical hot deformation processes such as rolling, forging,
Hamed Mirzadeh
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Ultrafine-grained structure formation in Ti-6Al-4V alloy via warm swaging [PDF]
, 2014 The influence of warm swaging on the structure and properties of Ti-6Al-4V alloy was studied. Warm swaging of the alloy in the interval 680-500°C with the total strain of ε=2.66 was found to be resulted in the formation of a homogeneous globular ...
Klimova, М. +2 more
core +1 more source
Journal of Materials Research and TechnologyIn this study, we present a microstructural and mechanical analysis of Ti–6Al–4V alloys processed by low-temperature multi-directional forging at 900 °C, achieving near-theoretical density (99.9%), with a tensile strength of 1070 MPa and elongation of 14.
Shangxing Qiu +7 more
doaj +1 more source