Nanoscale austenite reversion through partitioning, segregation, and kinetic freezing: Example of a ductile 2 GPa Fe-Cr-C steel [PDF]
Acta Materialia 60 (2012) 2790-2804, 2012 Austenite reversion during tempering of a Fe-13.6Cr-0.44C (wt.%) martensite results in an ultrahigh strength ferritic stainless steel with excellent ductility. The austenite reversion mechanism is coupled to the kinetic freezing of carbon during low-temperature partitioning at the interfaces between martensite and retained austenite and to carbon ...
Choi, P. +5 more
arxiv +3 more sources
Dynamic elastic properties and magnetic susceptibility across the austenite-martensite transformation in site-disordered ferromagnetic Ni-Fe-Al alloy [PDF]
, 2007 Besides permitting an accurate determination of the ferromagnetic-to-paramagnetic phase transition temperature and the characteristic temperatures for the beginning and end of the growth of martensite (austenite) phase at the expense of austenite (martensite) phase while cooling (heating), the results of an extensive ac susceptibility, sound velocity ...
Otsuka K. +2 more
arxiv +5 more sources
What is the stable atomic structure of NiTi austenite? [PDF]
Phys. Rev. B 90, 060102 (2014), 2014 Nitinol (NiTi), the most widely used shape-memory alloy, exhibits an austenite phase that has yet to be identified. The usually assumed austenite structure is cubic B2, which has imaginary phonon modes, hence it is unstable. We suggest a stable austenite structure that on average has B2 symmetry (observed by X-ray and neutron diffraction), but exhibits
Johnson, Duane +3 more
arxiv +6 more sources
Alloying and strain hardening of high-entropy membrane storage nano and crystalline alloys
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022 The article presents both molecular dynamics calculations of binary Fe–Ni alloys and experimental studies of Ti and Co alloyed nanocrystalline alloys with a B2–Ti(Fe, Co) matrix structure as well as bcc-(Nb, Ti) and B2– eutectic phases Ti(Fe, Co).
R.M. Belyakova +2 more
doaj +1 more source
Effect of Aluminum Addition with Nitrogen on K-Carbide Formation in Carbon-Mn Steel
Medžiagotyra, 2022 An attempt has been made in the present research work to investigate the role and influence of chemical effect of aluminum addition in the experimental steel towards the formation of k-carbides.
Shahid Hussain ABRO +4 more
doaj +1 more source
Effects of carbon content on high-temperature mechanical and thermal fatigue properties of high-boron austenitic steels [PDF]
China Foundry, 2016 High-temperature mechanical properties of high-boron austenitic steels (HBASs) were studied at 850 °C using a dynamic thermal-mechanical simulation testing machine.
Xiang Chen, Zhi-sheng Wang, Yan-xiang Li
doaj +1 more source
Effect of Element Addition, Microstructure Characteristics, Mechanical Properties, Machining and Welding Processes of the Hadfield Austenitic Manganese Steel [PDF]
Archives of Metallurgy and Materials, 2022 High manganese steel, also called Hadfield steel, is an alloy essentially made up of iron, carbon, and manganese. This type of steel occupies an important place in the industry. It possesses high impact toughness and high resistance against abrasive wear
R. Zellagui +3 more
doaj +1 more source
Quantitative Description of Duplex Stainless Steels Microstructure Using Selective Etching
Metals, 2021 The properties of duplex stainless steels (DSSs) depend on the ferrite–austenite ratio, on the content of secondary phases and on the contamination with non-metallic inclusions. To assess the quality of DSSs, it is necessary to use an integrated approach
Aleksandr Sergeevich Fedorov +4 more
doaj +1 more source
Metals, 2021 This study deals with Transformation-Induced Plasticity (TRIP) observed in the martensitic transformation of 35NCD16 ferritic steel. In this study, TRIP tests were carried out for two different cases: First, after only free dilatometric (FD) tests, which
Jose Jimenez, Lakhdar Taleb
doaj +1 more source
Position-dependent shear-induced austenite-martensite transformation in double-notched TRIP and dual-phase steel samples [PDF]
, 2014 While earlier studies on transformation-induced-plasticity (TRIP) steels focused on the determination of the austenite-to-martensite decomposition in uniform deformation or thermal fields, the current research focuses on the determination of the local ...
Blonde, R. +7 more
core +1 more source