Results 91 to 100 of about 47,924 (231)

The Control of Flow Localization in the Post Severe Plastic Deformation (SPD) Forming of Aluminum Through the Application of Low Strain Amplitude Multidirectional (LSA-MDF) Forging [PDF]

open access: yesMaterials Research
Severe Plastic Deformation (SPD) of metals leads to their strengthening and losses in the work hardening capacity. The latter causes flow localization upon subsequent forming of the material.
C.G. de Faria   +2 more
doaj   +1 more source

Multi-Directional Forging and Warm Extrusion of AZ80Mg Alloys

open access: yesMATERIALS TRANSACTIONS, 2021
Hiromi Miura   +3 more
openaire   +2 more sources

Grain size and texture changes of magnesium alloy AZ31 during multi-directional forging

open access: yesTransactions of Nonferrous Metals Society of China, 2008
Grain size and texture changes of magnesium alloy AZ31 were studied in multidirectional forging (MDF) under decreasing temperature conditions. MDF was carried out up to large cumulative strains of 4.8 with changing the loading direction during decrease in temperature from pass to pass.
Xu-yue YANG   +4 more
openaire   +1 more source

Slaves out of context: domestic slavery and the Anglo-Indian family, c. 1780–1830 [PDF]

open access: yes, 2009
This paper explores the place of domestic slaves in British families resident in India, c. 1780–1830, and the ways in which the presence of slaves within these Anglo-Indian households challenged British understandings of slavery as a practice.
Finn, Margot C.
core   +1 more source

Effect of pre-induced twinning on microstructure and tensile ductility in GW92K magnesium alloy during multi-direction forging at decreasing temperature

open access: yesJournal of Magnesium and Alloys, 2014
Effect of pre-induced twinning on the microstructure evolution and mechanical properties of extruded Mg-9.26Gd-2.08Y-0.36Zr (GW92K) alloy have been investigated during multi-direction forging with large strains at decreasing temperature from 400 °C to ...
S.Q. Li, W.N. Tang, R.S. Chen, W. Ke
doaj   +1 more source

Numerical Investigation on the Strain Evolution of Ti-6Al-4V Alloy during Multi-directional Forging at Elevated Temperatures

open access: yesHigh Temperature Materials and Processes, 2018
Multi-directional forging (MDF) is one of the most promising severe plastic deformation (SPD) methods used in fabricating large-scale bulk metal materials with ultra-fine grains (UFG). A finite element model for MDF is developed to investigate the strain
Yan Chenkan, Shen Jun, Lin Peng
doaj   +1 more source

The materials processing research base of the Materials Processing Center [PDF]

open access: yes
The goals and activities of the center are discussed. The center activities encompass all engineering materials including metals, ceramics, polymers, electronic materials, composites, superconductors, and thin films.
Bowen, H. K.   +2 more
core   +1 more source

Microstructure and mechanical properties of AZ61 Mg alloy prepared by multi directional forging

open access: yesTransactions of Nonferrous Metals Society of China, 2010
Abstract AZ61Mg alloy was multi directionally forged (MDFed) during decreasing temperature condition from 643 K to 483 K at a true strain rate of 3×10−3 s−1 up to cumulative strain of ΣΔe=4.0 at maximum. A pass strain of Δe=0.8 was employed. While average grain size decreased gradually with increasing cumulative strain, the evolution of fine-grained ...
H. MIURA, G. YU, X. YANG, T. SAKAI
openaire   +1 more source

Synergistic enhancement of strength and toughness of β-Ti alloy with a fine grain: Effect of deformation temperature [PDF]

open access: yesMATEC Web of Conferences
It is difficult for as-cast titanium alloys to achieve high strength and toughness due to the presence of coarse β grains. In this study, multi-directional forging (MDF) was employed to break down the coarse β grains into fine grains and the mechanism of
Li Yili   +4 more
doaj   +1 more source

Cost analysis of advanced turbine blade manufacturing processes [PDF]

open access: yes
A rigorous analysis was conducted to estimate relative manufacturing costs for high technology gas turbine blades prepared by three candidate materials process systems.
Barth, C. F.   +2 more
core   +1 more source

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