Results 81 to 90 of about 130,811 (329)
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling+12 more
wiley +1 more source
Deformation behavior of AA2017–SiCp in warm and hot deformation regions
Abstract In this work, the flow stress behavior of a metal matrix composite AA2017–10% SiCp was studied by means of the uni-axial compression test. The composite was first produced by stir casting technique and then, hot extrusion with the ratio of 18:1 was carried out to achieve a microstructure with a homogeneous distribution of SiC particles.
S. M. H. Mirbagheri+3 more
openaire +2 more sources
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley +1 more source
Hot deformation behavior of ZE41A magnesium alloy
Abstract The deformation and failure behavior of ZE41A alloy in cast and heat treated conditions were investigated using tensile test at various temperatures, from 25 to 200 °C and at a strain rate range of 0.005–0.05 S −1 . The stress and strain corresponding to the fracture were estimated.
R. Karthikeyan+4 more
openaire +2 more sources
The functional properties of Fe–Mn–Si–Cr‐based shape memory alloys are influenced, among other things, by their chemical composition. Here, the vaporization of Mn, the most volatile element of the alloy, is investigated. It is shown that the process parameters make noninterchangeable contributions to the vaporization and that vaporization differences ...
Maylin Homfeldt, Anastasiya Toenjes
wiley +1 more source
Development of Aluminum Scandium Alloys for Hydrogen Storage Valves
Different aluminum alloy series and various aluminum‐scandium alloys with differing Sc and Zr levels are evaluated for use in hydrogen storage valve production. The alloys undergo hardness testing, optical microscopy, and tensile strength analysis, with hardening behavior studied under varying conditions.
Francisco García‐Moreno+4 more
wiley +1 more source
Observations of transient high temperature vortical microstructures in solids during adiabatic shear banding [PDF]
By using a unique infrared high-speed camera especially constructed for recording highly transient temperature fields at the microscale, we are able to reveal the spatial and temporal microstructure within dynamically growing shear bands in metals. It is
Guduru, P. R.+2 more
core +1 more source
Hot deformation behavior of spray formed FGH4095
For the numerical simulation of hot working process of spray-formed FGH4095, the high temperature deformation behavior of spray-formed FGH4095 is studied at different deformation temperatures (1010-1140 ℃) and different strain rates (0.001-10.0 s-1) using Gleeble 3800 thermal simulator. The constitutive equation is established with the sinh model.
Shen Wei-Ping+3 more
openaire +1 more source
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus+9 more
wiley +1 more source
An internal variable constitutive model for the large deformation of metals at high temperatures [PDF]
The advent of large deformation finite element methodologies is beginning to permit the numerical simulation of hot working processes whose design until recently has been based on prior industrial experience.
Anand, Lallit, Brown, Stuart
core +1 more source