Results 81 to 90 of about 10,505 (224)
Nitrogen diffusion through cementite layers [PDF]
Philosophical Magazine, 2010 Massive cementite layers with a time-dependent thickness were grown on ferrite substrates by nitrocarburising in a dedicated NH3/H2/CO/N2 containing gas atmosphere at 783 K, 823 K and 843 K. Nitrogen diffusion through the cementite layer into the ferrite substrate took place in conjunction with growth of the cementite layer; a significant, i.e ...
Nikolussi, M. +2 more
openaire +3 more sources
steel research international, EarlyView.This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka +3 more
wiley +1 more source
EFFECT OF COPPER ON PASSIVITY AND CORROSION BEHAVIOR OF FE-XC-5CU ALLOY
Journal of Fundamental and Applied Sciences, 2015 The correlation between corrosion behavior rate of annealed Fe-xC-5Cu alloys and their microstructure and phase composition is presented. The metallurgical analyses, including, X-Ray diffraction (XRD), the scanning electron microscopy (SEM) with energy ...
M. Ferhat, A. Benchettara, S. E. Amara
doaj +1 more source
Influence of boron content on the fracture toughness and fatigue crack propagation kinetics of bainitic steels [PDF]
, 2016 The relatively good combination of high strength and ductility makes bainitic steels a candidate to replace many other steels in industrial applications. However, in service, ductility and strength are not up to standard requirements.
Cabrera Marrero, José M. +4 more
core +2 more sources
steel research international, EarlyView.Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan +8 more
wiley +1 more source
Intensive Improvement of Cementite Synthesis
European Journal of Engineering and Technology Research, 2020 Cementite extraordinary mechanical properties have drawn the attention of researchers in recent years. But, the limited methods for the production of this material, led to the production of iron with more than 2.1%wt carbon content beside free carbon by simultaneous thermal-mechanical activation of hematite and graphite mixture at 800°C for 6 hours in ...
Amir Peyman Soleymani +2 more
openaire +3 more sources
Archives of Metallurgy and Materials, 2016 Pearlitic steels containing from some 0,8 to 0,95% C belong to the group of unalloyed steels intended for cold drawing or rolling. One of the problems discussed in literature is cracking of pearlitic steel subjected to plastic working, caused by high ...
Grygier D. +3 more
doaj +1 more source
Phonons and elasticity of cementite through the Curie temperature [PDF]
, 2017 Phonon partial densities of states (pDOS) of ^(57)Fe_3 C were measured from cryogenic temperatures through the Curie transition at 460 K using nuclear resonant inelastic x-ray scattering.
Fultz, B. +8 more
core +1 more source
steel research international, EarlyView.This review explains how impurities from recycled scrap affect steel production and performance. Even small amounts (far below 1%) of these impurities can change how steel behaves during fabrication but also affect the properties of the end product. With better understanding and targeted countermeasures, these challenges can be managed, enabling wider ...
Oleksandr Glushko, Ronald Schnitzer
wiley +1 more source
Precipitation Dynamics Analysis on Cementite in 0. 2 C-1.25 Si-2.0 Mn Q&P Steel
Teshugang, 2020 In order to study the effect of soaking process in critical zone of Q&P ( Queching and Partition) steel on the cementite precipitation during partitioning process, the PTT ( precipitation amount-temperature-time) curves of the cementite precipitation of ...
何方 +4 more
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