Microstructural stability of 9–12% Cr ferrite/martensite heat-resistant steels

W Yan, W Wang, YY Shan, K Yang - Frontiers of Materials Science, 2013 - Springer
The microstructural evolutions of advanced 9–12% Cr ferrite/martensite heat-resistant steels
used for power generation plants are reviewed in this article. Despite of the small differences …

A model for the microstructure behaviour and strength evolution in lath martensite

EI Galindo-Nava, PEJ Rivera-Díaz-del-Castillo - Acta Materialia, 2015 - Elsevier
A new model describing the microstructure and strength of lath martensite is introduced. The
packet and block size were found to linearly depend on the prior-austenite grain size when …

The influence of silicon in tempered martensite: Understanding the microstructure–properties relationship in 0.5–0.6 wt.% C steels

B Kim, E Boucard, T Sourmail, D San Martín, N Gey… - Acta Materialia, 2014 - Elsevier
The strengthening contributions in medium-carbon tempered martensite are unveiled in this
work. By using transmission electron microscopy and synchrotron radiation X-ray diffraction …

The kinetics of static recovery by dislocation climb

AA Kohnert, L Capolungo - npj Computational Materials, 2022 - nature.com
The initial microstructure of a wide range of structural materials is conditioned by thermo-
mechanical treatments such as hot-working, tempering, or solution annealing. At the …

Effect of quenching and tempering temperature on microstructure and tensile properties of microalloyed ultra-high strength suspension spring steel

K Chen, Z Jiang, F Liu, J Yu, Y Li, W Gong… - Materials Science and …, 2019 - Elsevier
Abstract Effects of quenching-tempering heat treatment on microstructural evolution and
fracture behavior of microalloyed high strength suspension spring 55SiCrVNb were …

Effect of NbC and VC carbides on microstructure and strength of high-strength low-alloyed steels for oil country tubular goods

T Zeng, S Zhang, X Shi, W Wang, W Yan… - Materials Science and …, 2021 - Elsevier
High-strength low-alloyed (HSLA) steels for oil country tubular goods (OCTGs) are usually
microalloyed with niobium (Nb) and vanadium (V). In this work, the microstructure and …

Evolution of microstructure and mechanical properties of 9Cr ferrite/martensite steels with different Si content after long-term aging at 550° C

Y Zhang, H He, H Wang, G Chen, X An… - Journal of Alloys and …, 2021 - Elsevier
In view of develo** novel alloys for applications in advanced Generation IV lead-cooled
fast reactor (LFR) fuel cladding materials, four 9Cr ferrite/martensite (F/M) heat resistant …

Predicting dislocation density in martensite ab-initio

P Andric, SE Restrepo, F Maresca - Acta Materialia, 2023 - Elsevier
The high dislocation density (ρ d) in Fe-C and/or Fe-N martensite is known to be one of the
main causes of its overall yield strength. Experiments indicate that the dislocation density …

An assessment of creep deformation and rupture behaviour of 9Cr–1.8 W–0.5 Mo–VNb (ASME grade 92) steel

T Sakthivel, SP Selvi, K Laha - Materials Science and Engineering: A, 2015 - Elsevier
Creep deformation and rupture behaviour of 9Cr–1.8 W–0.5 Mo–VNb steel have been
investigated at 873 K, 923 K and 973 K over a stress range of 80–220 MPa. The absence of …

Tempering behavior of a direct laser deposited hot work tool steel: Influence of quenching on secondary hardening and microstructure

S Amirabdollahian, F Deirmina, M Pellizzari… - Materials Science and …, 2021 - Elsevier
Abstract Direct Laser Deposition (DLD) opens new ways for the fabrication of tools with
intricate designs as well as for dies and molds repairing. However, non-equilibrium, and …