Results 41 to 50 of about 66,508 (302)

Effect of High Magnetic Field in Combination with High-Temperature Tempering on Microstructures and Mechanical Properties of GCr15 Bearing Steel

open access: yesMetals, 2022
The microstructures and mechanical properties of GCr15 bearing steel after high-temperature tempering with and without a 5 T high magnetic field (HMF) were investigated.
Yongcheng Li   +7 more
doaj   +1 more source

Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels [PDF]

open access: yes, 2017
Cr – Mn – Mo – Ni pressure vessel steels containing 0.54 and 1.55% Si are studied. Metallographic and fractographic analyses of the steels after tempering at 650 and 700°C are performed.
A Gustafson   +27 more
core   +1 more source

Heat affected zone in surfacing chromium ledeburitic steel [PDF]

open access: yesMetalurgija, 2010
Tools get failured during work; wear is a major factor that contributes to failures. Damaged tools are replaced or filed. This paper describes typical changes that occur in the heat affected zone of tool (HAZ), which was repaired by surfacing with a TIG ...
M. Tonkovič Prijanovič, L. Kosec
doaj  

Interphase precipitation behavior of nano-sized carbides in low carbon steel

open access: yes工程科学学报, 2015
The microstructures of hot rolled Ti-Mo-bearing low-carbon steel and its precipitation characterization of nano-sized carbides were studied by scanning electron microscopy and transmission electron microscopy. It is shown that precipitation strengthening
HUANG Yao   +5 more
doaj   +1 more source

On the spheroidized carbide dissolution and elemental partitioning in a high carbon bearing steel 100Cr6

open access: yes, 2013
We report on the characterization of high carbon bearing steel 100Cr6 using electron microscopy and atom probe tomography in combination with multi-component diffusion simulations (DICTRA).
Bleck, Wolfgang   +5 more
core   +1 more source

Compressibility and structural stability of ultra-incompressible bimetallic interstitial carbides and nitrides [PDF]

open access: yes, 2012
We have investigated by means of high-pressure x-ray diffraction the structural stability of Pd2Mo3N, Ni2Mo3C0.52N0.48, Co3Mo3C0.62N0.38, and Fe3Mo3C. We have found that they remain stable in their ambient-pressure cubic phase at least up to 48 GPa.
A. Gómez   +8 more
core   +1 more source

Effects of cooling rate on the mechanical properties and precipitation behavior of carbides in H13 steel during quenching process

open access: yesMaterials Research Express, 2020
The effects of cooling rate (CR) on the mechanical properties and precipitation behavior of carbides in H13 steel during quenching process were investigated.
Angang Ning   +4 more
doaj   +1 more source

Serpentinization: Connecting Geochemistry, Ancient Metabolism and Industrial Hydrogenation

open access: yesLife, 2018
Rock–water–carbon interactions germane to serpentinization in hydrothermal vents have occurred for over 4 billion years, ever since there was liquid water on Earth. Serpentinization converts iron(II) containing minerals and water to magnetite
Martina Preiner   +11 more
doaj   +1 more source

Neutron Diffraction Measurements and First Principles Study of Thermal Motion of Atoms in Select M_{n+1}AX_n and Binary MX Transition Metal Carbide Phases

open access: yes, 2012
Herein, we compare the thermal vibrations of atoms in select ternary carbides with the formula Mn+1AXn ("MAX phases," M = Ti, Cr; A = Al, Si, Ge; X = C, N) as determined from first principles phonon calculations to those obtained from high-temperature ...
Barsoum, Michel W.   +6 more
core   +1 more source

PHYSICAL AND CHEMICAL FEATURES OF ELECTROEXPLOSIVE SPRAING OF Mo-C-Cu ELECTRICAL EROSION STABLE COATINGS [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
By the method of electroexplosive spraying of structurally-free copper, molybdenum and graphite are formed on the surface of the copper contacts. Microcrystalline composite coatings contain matrix of pseudoalloys Mo-Cu with synthesized electrical erosion
D.A. Romanov   +3 more
doaj  

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