Results 51 to 60 of about 57,331 (267)

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

The comparison of gas tungsten arc welding and flux cored arc welding effects on dual phase steel

Materials Research Express, 2020
This work aims to investigate the effects of two welding techniques (gas tungsten arc welding (GTAW) with filler metal ER70S-3 and flux cored arc welding (FCAW) with filler metal E71T1C) on the microstructure and mechanical properties (including ...
Mahmoud Abbas, Ahmed Sayed Hamdy, Essam Ahmed   +2 more
doaj   +1 more source

Studies and Researches on Heating Microstructures of Some Steels

Scientific Bulletin of Valahia University: Materials and Mechanics, 2022
An important category of widely used steels is chromium alloy improvement steels (STAS 9382/4-89) intended for the execution of shafts, axles, cams, sprockets and sprockets subjected to operation at important demands.
Stoian Elena Valentina, Bratu Vasile, Bratu Ruxandra Elena, Petre Ivona Camelia, Enescu Maria Cristiana, Rusanescu Carmen Otilia   +5 more
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Structure and Phase Transition of Fe-Mn Alloy Powders Prepared by Gas Atomization [PDF]

Materials Research, 2015
In this paper we investigated the microstructure and phase transition of atomized Fe-(1.3, 7.9, 11.7 wt.%) Mn alloy powders. The results show that the main phases of Fe-1.3Mn, Fe-7.9Mn and Fe-11.7Mn powders are ferrite, α’-martensite+austenite, α ...
Yang Yang, Libing Liu, Yunhu Zhang, Changjiang Song, Qijie Zhai   +4 more
doaj   +2 more sources

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Hydrogen Effect on the Cyclic Behavior of a Superelastic NiTi Archwire

Metals, 2019
In this work, we are interested in examining the strain rate effect on the mechanical behavior of Ni–Ti superelastic wires after hydrogen charging and ageing for 24 h.
Rihem Sarraj, Amir Kessentini, Tarek Hassine, Ali Algahtani, Fehmi Gamaoun   +4 more
doaj   +1 more source

Friction-Induced Martensitic Transformation and Wear Properties of Stainless Steel under Dry and Wet Conditions

Metals, 2020
The wear characteristics of SUS304 and SUS316 stainless steels were evaluated at the rotation speeds of 100 m/s, 200 m/s, and 300 m/s under dry and wet conditions.
Yoon-Seok Lee, Yuta Kondo, Mitsuhiro Okayasu   +2 more
doaj   +1 more source

Tempering of Lath Martensite in Low and Medium Carbon Steels: Assessment and Challenges

Steel Research International, 2017
This paper is a directed review of the microstructures and the mechanisms, by which they are formed by tempering of lath martensite in low and medium carbon steels. As‐quenched martensitic structure is first reviewed, then low‐temperature tempering (LTT)
G. Krauss
semanticscholar   +1 more source