Results 221 to 230 of about 6,883 (261)

Annealing of a Nanostructured Bainitic Steel

Metallography, Microstructure, and Analysis, 2020
Abstract This article describes a procedure for optimizing the annealed microstructure of a high Al KAB steel. The main focus is directed toward characterization of microstructural development during annealing of different phases in a nanostructured bainitic steel using high resolution transmission electron microscopy (HRTEM). This entry
Peter Kirbiš, Henrik Kaker, Tomaž Irgolič, Darja Feizpour   +3 more
openaire   +1 more source

Hydrogen-Trapping Mechanisms in Nanostructured Steels

Metallurgical and Materials Transactions A, 2013
Nanoprecipitation-hardened martensitic bearing steels (100Cr6) and carbide-free nanobainitic steels (superbainite) are examined. The nature of the hydrogen traps present in both is determined via the melt extraction and thermal desorption analysis techniques.
Szost, B. A., Vegter, R. H., Rivera-Díaz-Del-Castillo, Pedro E.J.   +2 more
openaire   +2 more sources

Nanostructural Engineering of TMCP Steels

2011
This paper reviews current research that aims to understand and manipulate the properties of advanced steels through control of the nanostructure, with an emphasis on thermomechanically produced steels. While the concepts of such strengthening mechanisms have been understood and used for many years, it is now possible through advanced characterisation ...
Peter D. Hodgson, Ilana B. Timokhina, Hossein Beladi, Subrata Mukherjee   +3 more
openaire   +1 more source

Developing very hard nanostructured bainitic steel

Materials Science and Engineering: A, 2013
Abstract Novel nanostructured high carbon high silicon, carbide-free bainitic steels with very high strength and good ductility have been developed in the recent decade. In this work, an alloy with a high carbon content and no manganese was designed and cast. The prepared samples were heat treated through an austempering process in the range 200–350 °
H. Amel-Farzad, H.R. Faridi, F. Rajabpour, A. Abolhasani, Sh. Kazemi, Y. Khaledzadeh   +5 more
openaire   +1 more source

Nanostructuring steel for injection molding tools

Journal of Micromechanics and Microengineering, 2014
The production of nanostructured plastic items by injection molding with ridges down to 400 nm in width, which is the smallest line width replicated from nanostructured steel shims, is presented. Here we detail a micro-fabrication method where electron beam lithography, nano-imprint lithography and ion beam etching are combined to nanostructure the ...
A Al-Azawi, K Smistrup, A Kristensen
openaire   +1 more source

Nanostructured Steel Industrialization - A plausible reality

2013
A lecture given by Carlos-Garcia Meteo, at the Adventures in the Physical Metallurgy of Steels (APMS) conference held in Cambridge University. Here he talks about the industrial production of two components from the world's first bulk nanostructured material, the so-called superbainite.
Garcia-Mateo, Carlos, Sourmail, T., Caballero, F.G., Smanio, V., Ziegler, C., Kuntz, M., Lerio, A., Vuorinen, E., Teeri, T.   +8 more
openaire   +1 more source

Characterization of Irradiated Nanostructured Ferritic Steels

Microscopy and Microanalysis, 2007
The past decade has seen the development of a new class of mechanically alloyed (MA) ferritic steels with outstanding mechanical properties that come, at least in part, from the presence of high concentrations (>10{sup 23} m{sup -3}) of Ti-, Y-, and O-enriched nanoclusters (NC).
J Bentley, DT Hoelzer, H Tanigawa, T Yamamoto, GR Odette   +4 more
openaire   +1 more source

Toughness variations in nanostructured bainitic steels

Materials Science and Engineering: A, 2012
Abstract Outstanding combination of strength and ductility in nanostructured bainitic steels makes them prone to be used as an important engineering material. However, there is still a necessity to investigate their toughness and effective parameters. This work aims to study the fracture toughness of these group of high strength carbide free bainitic
Behzad Avishan, Sasan Yazdani, Syamak Hossein Nedjad   +2 more
openaire   +1 more source

Nanostructured Nickel-Free Austenitic Stainless Steel/Hydroxyapatite Composites

Journal of Nanoscience and Nanotechnology, 2012
In this work Ni-free austenitic stainless steels with nanostructure and their nanocomposites with hydroxyapatite are presented and characterized by means of X-ray diffraction and optical profiling. The samples were synthesized by mechanical alloying, heat treatment and nitriding of elemental microcrystalline powders with addition of hydroxyapatite (HA).
Maciej, Tulinski, Mieczyslaw, Jurczyk
openaire   +2 more sources

Aqueous corrosion performance of nanostructured bainitic steel

Materials & Design (1980-2015), 2014
In this study, the corrosion performance of nanostructured bainitic steel was compared with martensitic steel in chloride-containing solution using electrochemical techniques. Electrochemical impedance spectroscopy (EIS) results showed that the polarization resistance (Rp) for nanostructured bainitic steel (3400 Ω cm2) was higher than that of ...
Kazum, O., Mathan, M. Bobby, Beladi, H., Timokhina, I.B., Hodgson, P.D., Khoddam, S.   +5 more
openaire   +2 more sources