Results 161 to 170 of about 63,565 (197)

Research on Neural Network Prediction of Multidirectional Forging Microstructure Evolution of GH4169 Superalloy

Journal of Materials Engineering and Performance, 2021
Based on the hot compression experiment of GH4169 superalloy, the constitutive equation and the microstructure evolution model of GH4169 superalloy were established, and they were introduced into the Deform® simulation software to realize the simulation of the microstructure evolution of GH4169 superalloy in closed multidirectional forging, single ...
Jun-Ting Luo, Chunxiang Zhang
exaly   +2 more sources

Hybrid extrusion and multidirectional forging additive manufacturing technique

Additive manufacturing (AM) is a well-established technique for prototyping and producing components in small to medium batch sizes. However, AM parts commonly exhibit defects, coarse grain structures, and anisotropic properties, which lead to inferior tensile performance.
Jintana, Patawee
openaire   +2 more sources

Multidirectional Forging of AZ91 Magnesium Alloy and Its Effects on Microstructures and Mechanical Properties

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2015
Abstract AZ91 alloy was subjected to multidirectional forging (MDF) and the relationship between microstructures and mechanical properties generated by MDF were investigated. The results showed that after 1 MDF pass grain size of the alloy decreased compared with as-cast alloy, and the amount of recrystallization grains increased when the MDF ...
K K Deng, K B Nie, M Y Zheng
exaly   +2 more sources

Effect of Multidirectional Forging on Microstructures and Tensile Properties of a Particulate Reinforced Magnesium Matrix Composite

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2011
Abstract A particulate reinforced magnesium matrix composite prepared with stir casting was subjected to multidirectional forging (MDF). The results showed that after 1 MDF pass the grain size of matrix in the composites decreased compared with as-cast composite, and increased with increasing the MDF temperature from 370 °C to 450 °C. With increasing
X S Hu, K K Deng, K B Nie
exaly   +2 more sources

Thermal stability of Copper processed by Multidirectional forging: Effect of deformation amplitude and cumulative Strain

Materials Science and Engineering: A, 2022
Experiments were performed in order to evaluate the effect of deformation amplitude (Δε) and cumulative strain (ε) on the thermal stability of Copper 99.8% pure, after processing with 8 and 48 Multidirectional forging (MDF) cycles at room temperature ...
Paula Cibely Alves Flausino, Elaine Carballo Siqueira Corrêa, Pedro Henrique Rodrigues Pereira, Maria Teresa Paulino Aguilar, Paulo Roberto Cetlin   +4 more
openaire   +2 more sources

Effect of Multidirectional Forging and Heat Treatment on Mechanical Properties of in Situ ZrB2p/6061Al Composites

High Temperature Materials and Processes, 2018
Aluminum matrix composites that were reinforced by in situ zirconium diboride nanoparticles were fabricated from an aluminum-potassium tetrafluoroborate-potassium hexafluorozirconate system via a direct-melt reaction.
Yangchuan Cai, Yuhjin Chao
exaly   +2 more sources

Microstructures and Mechanical Properties of SiCp/AZ91 Magnesium Matrix Nanocomposites Processed by Multidirectional Forging

Journal of Alloys and Compounds, 2015
A particulate reinforced magnesium matrix nanocomposite was subjected to multidirectional forging (MDF). The results showed that the microstructure of the nanocomposite mainly consisted of some large initial grains and fine recrystallized grains along ...
K K Deng, W M Gan, K B Nie
exaly   +2 more sources

Investigation of the required clamping force at multidirectional undercut-forging

Production Engineering, 2018
A hot forging process allows to produce parts of excellent quality and technical properties. Nevertheless, it is not possible to forge undercut geometries like piston pin bores, it is usually necessary to manufacture them in subsequent processes. Thus, an undercut-forging process was newly developed.
Jonathan Ross, Jan Langner, Malte Stonis, Bernd-Arno Behrens   +3 more
openaire   +2 more sources

Condition of Carbides in High-Speed Steels after Multidirectional Forging

Defect and Diffusion Forum, 2019
Although heat treatment of high-speed steels has been covered in numerous treatises, their microstructure before treatment still receives insufficient attention. This article therefore explores the relationship between the initial microstructure and resultant properties in heat treated steels for cutting tools and sonotrodes (special tools for ...
Kříž, Antonín, Průcha, Vojtěch
openaire   +3 more sources

Superplastic properties in a Ti5Al3Mo1.5 V titan alloy processed by multidirectional forging process

Materials Letters, 2022
Abstract In this study, ultrafine grains in microstructures of Ti5Al3Mo1.5 V titan alloy was achieved by the multidirectional forging (MDF) process. The essence of the MDF is pressing steps combined with rotations of the workpiece in all directions within a forging cycle. The MDF process was performed for one to three cycles at temperatures from 850 °
Manh Tien Nguyen, Van Thao Le, Manh Hung Le, Truong An Nguyen   +3 more
openaire   +1 more source