Results 11 to 20 of about 86 (78)

Nanobainite Generated in Low‐ and Medium‐Carbon Steels via an Economical Alloying Strategy [PDF]

open access: yessteel research international, 2021
A low‐cost strategy for generating fast transforming nanobainitic (nB) steels in low‐ and medium‐carbon alloys is investigated. Accelerating the bainite transformation relies on adding 0.7–3 wt% Al. Alloys and heat treatments are designed via thermodynamic calculations and dilatometry.
Mohamad Akram   +2 more
openaire   +2 more sources

Thermodynamic analysis and strength-toughness research of nanobainite

open access: yes工程科学学报, 2016
In view of slow phase transformation rate in high-carbon,silicon-rich and low-alloy bainite steel(nanostructured bainite steel),the effects of alloy elements on the overall kinetics of low temperature bainite phase transformation were analyzed by using ...
ZHI Chao   +4 more
doaj   +2 more sources

Corrosion Resistance of The Bearing Steel 67SiMnCr6-6-4 with Nanobainitic Structure

open access: yesArchives of Metallurgy and Materials, 2015
The paper describes a comparative study of the corrosion resistance of bearing steel 67SiMnCr6-6-4 after two kinds of nanostructuring treatments and two kinds of conventional quenching and tempering treatments.
Skołek E.   +3 more
doaj   +2 more sources

TEM

open access: yesArchives of Metallurgy and Materials, 2015
The aim of this study was to analyse and to identify the phases which formed in 100CrMnSi6-4 bearing steel after the nanostructuring heat treatment. Especially designed thermal treatment parameters were applied in order to obtain a nanobainitic structure.
Dworecka J.   +4 more
doaj   +2 more sources

Effect of Nanobainite Content on the Dry Sliding Wear Behavior of an Al-Alloyed High Carbon Steel with Nanobainitic Microstructure. [PDF]

open access: yesMaterials (Basel), 2019
In this work, a multiphase microstructure consisting of nanobainte, martensite, undissolved spherical carbide, and retained blocky austenite has been prepared in an Al-alloyed high carbon steel. The effect of the amount of nanobainite on the dry sliding wear behavior of the steel is studied using a pin-on-disc tester with loads ranging from 25–75 N ...
Song Z   +7 more
europepmc   +4 more sources

On the crystallographic characteristics of nanobainitic steel [PDF]

open access: yesActa Materialia, 2017
Abstract This study aims to elucidate the crystallographic characteristics of bainite transformed in a temperature range of 200–350 °C, where a nanobainitic structure is formed. The microstructure, consisting of bainitic ferrite laths and retained austenite, became significantly refined and its crystallographic arrangement changed with a decrease in ...
Hossein Beladi   +6 more
openaire   +1 more source

The Microstructure and Properties of Carbon Thin Films on Nanobainitic Steel [PDF]

open access: yesMetallurgical and Materials Transactions A, 2021
Abstract The aim of this study was to assess whether it is possible to produce a high adhesive carbon coating by applying low-temperature RFCVD and glow discharge methods on nanobainitic X37CrMoV5-1 steel with and without nitrided sublayer.
Emilia Skołek   +8 more
openaire   +1 more source

Glow discharge nitriding of nanobainitic X37CrMoV5-1 steel

open access: yes, 2023
Abstract One of the methods of improving mechanical properties of steels is nanostructuring via austempering, which leads to formation of a nanobainitic microstructure - a fine carbide-free bainitic ferrite plates with retained austenite. Due to high density of grain and interphase boundaries, this microstructure provides high tensile strength.
Emilia Skołek   +3 more
openaire   +1 more source

The Effect of Stepped Austempering on Phase Composition and Mechanical Properties of Nanostructured X37CrMoV5-1 Steel

open access: yesArchives of Metallurgy and Materials, 2015
This paper presents the results of studies of X37CrMoV5-1 steel subjected to quenching processes with a one-step and a two-step isothermal annealing. The TEM observation revealed that steel after one-step treatment led is composed of carbide-free bainite
Marciniak S.   +2 more
doaj   +1 more source

Tensile Ductility of Nanostructured Bainitic Steels: Influence of Retained Austenite Stability

open access: yesMetals, 2017
High silicon (>1.5%) steels with different compositions were isothermally transformed to bainite at 220 and 250 °C to produce what is often referred to as nanostructured bainite.
Thomas Sourmail   +5 more
doaj   +1 more source

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