Results 151 to 160 of about 225 (196)

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa, Alexey Boubnov, Dario De Angelis, Catriona Eschke, Maximilian Kabbe, Felix Kraus, Mirco Panighel, Richard Thelen, Davide Valentinis   +8 more
wiley   +1 more source

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Effect of upset pressure on texture evolution and its correlation to toughness in flash butt joints

Science and Technology of Welding and Joining, 2018
Effect of upset pressure on the weld zone microstructure, texture evolution and its effect on toughness were investigated. It was observed that an increase in upset pressure leads to a decrease in the heat-affected zone width and also the grain size as a result of recrystallisation.
Kanwer Singh Arora, Nikhil Shajan, Mahadev Shome   +2 more
exaly   +2 more sources

On the role of upset pressure during friction welding of IN713LC and AISI 4140

Materials Science and Technology
Effect of upset pressure on evolution of microstructure and mechanical properties for rotary friction welding of IN713LC superalloy and AISI 4140 steel have been investigated. Microstructure observation shows that with increasing upset pressure, grain refining effect of plastic deformation overrides grain growth effect of heat input, leading to finer ...
Vijay T. Gaikwad, M. K. Mishra, Abhishek Tripathi, R. K. P. Singh   +3 more
exaly   +2 more sources

Influence of Upset Pressure on Microstructure and Mechanical Properties of Friction-Welded AISI 4140 Low Alloy Steel Pipes

Transactions of the Indian Institute of Metals, 2019
In the present study, low alloy steel AISI 4140 pipe in reheated, quenched and tempered (RQT) condition was friction-welded using 6.4 MPa upset pressure followed by post-weld heat treatment as per the manufacturing practice prevailing in the drill pipe industry and compared the same with friction welds made at different upset pressures in the RQT ...
Abdul Khadeer Sk, Kumar B Ravi, P Ramesh Babu   +2 more
exaly   +2 more sources

Leak Testing When Revising Operating, Upset, and Design Pressures in Pressure Piping

Volume 2: Computer Technology and Bolted Joints; Design and Analysis, 2022
Abstract A pressure equipment operator initiated a program to achieve compliance with a jurisdiction’s requirements for Overpressure Risk Assessment updates. The program was also initiated to provide clarifications and improvements in the pressure piping documentation where overpressure allowances were inherent in the design of heritage ...
Trevor G. Seipp, Dina Kudzhak, Boyd Mckay   +2 more
openaire   +1 more source

Contact pressure distribution in upsetting of compound metals

Journal of Materials Processing Technology, 1996
Abstract Contact pressure distribution (CPD) on tool surface is very important in metal forming for description of wear mechanism and wear development, tool strength calculation and selection of tool material, selection of lubricant and so on. Shortage in CPD data has been a serious limitation in development of some forming processes and in analysis ...
A. Kocańda, W. Presz, G. Adamczyk, P. Czyżewski, W. Mazurek   +4 more
openaire   +1 more source