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 …

Multiple mechanisms of lath martensite plasticity

L Morsdorf, O Jeannin, D Barbier, M Mitsuhara… - Acta Materialia, 2016 - Elsevier
The multi-scale complexity of lath martensitic microstructures requires scale-bridging
analyses to better understand the deformation mechanisms activated therein. In this study …

An improved X-ray diffraction analysis method to characterize dislocation density in lath martensitic structures

F HajyAkbary, J Sietsma, AJ Böttger… - Materials Science and …, 2015 - Elsevier
An improved X-ray diffraction line profile analysis method is developed to determine
dislocation density of lath martensitic steels. This method combines the modified Warren …

3D structural and atomic-scale analysis of lath martensite: effect of the transformation sequence

L Morsdorf, CC Tasan, D Ponge, D Raabe - Acta Materialia, 2015 - Elsevier
To improve the fundamental understanding of the multi-scale characteristics of martensitic
microstructures and their micro-mechanical properties, a multi-probe methodology is …

A low-alloy high-carbon martensite steel with 2.6 GPa tensile strength and good ductility

Y Wang, J Sun, T Jiang, Y Sun, S Guo, Y Liu - Acta Materialia, 2018 - Elsevier
A low-alloy and high-carbon martensite steel (0.66% C) with ultrafine grains is produced by
combination of Tempforming (tempering and deforming of a quenched steel) and reheating …

Surface mechanical attrition treatment of additively manufactured 316L stainless steel yields gradient nanostructure with superior strength and ductility

S Ghosh, N Bibhanshu, S Suwas… - Materials Science and …, 2021 - Elsevier
Surface severe plastic deformation (S 2 PD) of additively manufactured/three-dimensional
(3D) printed metallic parts is gaining increased attention as a post-manufacturing operation …

Strain rate dependence of strengthening mechanisms in ultrahigh strength lath martensite

H Liu, XK Shang, BB He, ZY Liang - International Journal of Plasticity, 2023 - Elsevier
The strain rate dependent mechanical properties of lath martensite are important for
develo** ultrahigh strength steels for automobile applications. Here, taken 2 GPa grade …

[HTML][HTML] Strengthening control in laser powder bed fusion of austenitic stainless steels via grain boundary engineering

HE Sabzi, E Hernandez-Nava, XH Li, H Fu… - Materials & Design, 2021 - Elsevier
A new approach to modelling the microstructure evolution and yield strength in laser powder
bed fusion components is introduced. Restoration mechanisms such as discontinuous …

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 …

Hierarchical microstructure based crystal plasticity-continuum damage mechanics approach: Model development and validation of rolling contact fatigue behavior

J Park, K Lee, JH Kang, JY Kang, SH Hong… - International Journal of …, 2021 - Elsevier
A microstructure-based integrated crystal plasticity (CP) and continuum damage mechanics
(CDM) model is proposed for simulating rolling contact fatigue (RCF). The damage process …