Results 91 to 100 of about 15,535 (214)
High 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
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DRAFT Report:Community Systems Strengthening Toward a Research Agenda [PDF]
, 2014 Communities have a long history of acting to preserve and promote the health of their members. Public health researchers, programmers, and funders are increasingly recognizing that community involvement is essential to improving health, especially among ...
Arreola, Sonya +4 more
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Design, simulation and experimental investigation of a novel reconfigurable assembly fixture for press brakes [PDF]
, 2015 A reconfigurable assembly fixture is a major and important component of a reconfigurable assembly system. It isrequired for the assembly of a variety of press brake models inorder to reduce the assembly time and overall production time.The stages and ...
Battaïa, Olga +2 more
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Superplasticity of Fine-Grained Magnesium Alloy AZ31 Processed by Multi-Directional Forging
MATERIALS TRANSACTIONS, 2007 Superplasticity was studied in a fine-grained magnesium alloy AZ31 processed by multidirectional forging (MDF) under decreasing temperature conditions. Tensile tests were carried out at temperatures from 393 K to 473 K and at various strain rates. Superplasticity appears even at a low temperature of 393 K with a stress exponent of around 5.6 and a ...
Jie Xing +3 more
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Journal of Materials Research and TechnologyTwin and dislocation have critical influence on the mechanical properties of the widely used AZ80 magnesium alloy. In the present work, we designed room temperature multi-direction forging (MDF) at different strain amplitudes (3% and 6%) with a same ...
Zhuo Wang +3 more
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Synergistic enhancement of strength and toughness of β-Ti alloy with a fine grain: Effect of deformation temperature [PDF]
MATEC Web of ConferencesIt 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
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The materials processing research base of the Materials Processing Center [PDF]
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
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UniverCity Connections: Report From the Stakeholders [PDF]
, 2007 Outlines the development, vision, and community initiatives of UniverCity Connections, a collaboration between Colorado State University, Fort Collins, and others convened by the foundation.
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Applied SciencesMagnesium (Mg) and its alloys are currently the lightest structural metals in engineering applications, widely used in aerospace, defense technology, transportation and electronic 3C fields.
Jiaxuan Zhu, Huidong Zhi, Zhaoming Yan
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Medžiagotyra, 2019 This paper takes the ultra-fine grain AZ80 magnesium alloy multi-directionally forged as the research object. We observe its heating behavior at 673 K with an optical microscope, analyze the grain size distribution, and the change of average grain size ...
Jinlong ZHANG +5 more
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