Results 61 to 70 of about 5,978 (267)
Quenching and Partitioning of Multiphase Aluminum-Added Steels
Metals, 2019 The quenching and partitioning response following intercritical annealing was investigated for three lean TRIP-type high-Al steel compositions. Depending on the intercritical austenite fraction following annealing, the steels assumed either a ferrite ...
Tuomo Nyyssönen +5 more
doaj +1 more source
Materials & Design, 2021 In the present study, in situ high-energy X-ray diffraction (HEXRD), dilatometry, and metallography were conducted for the purpose of understanding microstructure evolution during intercritical annealing of a Fe-0.19C-4.39Mn steel from a martensitic ...
J.J. Mueller +8 more
doaj +1 more source
The Mossbauer spectroscopy studies of retained austenite
, 2021 Purpose: of this paper: This paper completes the knowledge concerning the mechanisms of destabilization and properties of retained austenite. Investigations were performed on 120MnCrMoV8-6-4-2 steel, which was designed in 1998, in Phase Transformations Research Group of Department of Physical and Powder Metallurgy at the Faculty of Metals Engineering ...
Krawczyk, J. +2 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source
Thermal stability of retained austenite in Quenching & Partitioning steels [PDF]
, 2015 The drive for ever more safety and fuel efficiency in the automotive industry led the industry to search for steels with enhanced strength and ductility.
Koopmans, T.T.W. (author)
core
Materials & Design, 2017 The role of retained austenite on tensile behavior in quenched and partitioned (Q&P) steels has been studied extensively, but the deformation behavior of martensite, which comprises the majority of Q&P microstructures, has received less attention.
K.O. Findley +3 more
doaj +1 more source
Behavior of Retained Austenite on Spring Steel
Transactions of Japan Society of Spring Engineers, 1993 ばね鋼における残留オーステナイトの機械的, 熱的挙動を調査した。 従来ばねにおける残留オーステナイトは, 焼戻し過程で分解してしまうため特に注目されていなかったが, 耐へたり性向上のための高Si化及び高強度化のための焼戻し温度の低下により, 使用状態でも残留オーステナイトは残存しうる。残留オーステナイトは, 加工誘起変態によりマルテンサイト化することが知られているが, 本実験において衝撃破壊やショットピーニングにより変態が進行することが確かめられた。
openaire +2 more sources
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Retained Austenite in Garret Engine Gears [PDF]
, 1993 The amount of retained austenite permissible in a component depends on its application and a qualitative estimate of it is essential . The present document describes the estimation of retained austenite, in13; steel specimens used to make garret engine ...
Ushadevi, S, Balasingh, C
core
Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application
Advanced Engineering Materials, EarlyView.N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang +4 more
wiley +1 more source