[HTML][HTML] In situ neutron diffraction analysis of microstructural evolution-dependent stress response in austenitic stainless steel under cyclic plastic deformation

M Kumagai, M Kuroda, T Matsuno, S Harjo, K Akita - Materials & Design, 2022 - Elsevier
Understanding fatigue phenomena in metals is of great significance for mechanical
performance in engineering systems. Microstructural evolution in austenitic stainless steels …

Significant dislocation strengthening of stainless steel 316L via co-directed energy deposition of silica

HS Kim, SH Park - Materials Science and Engineering: A, 2024 - Elsevier
This study aims at fully utilizing dislocation strengthening for higher hardness of stainless
steel 316 L through two methods: 1) Multi-layer directed energy deposition (DED) is utilized …

Impact of dislocation density and mobility on yielding behavior in quenched medium-carbon martensitic steel tempered at low temperature

H Uchima, M Kumagai, J Shimbe, A Tanabe… - ISIJ …, 2022 - jstage.jst.go.jp
Middle-carbon martensite steels are vital materials for mechanical components and their
mechanical properties have attracted significant interest. However, the decrease in the …

Excellent strength-ductility in Ti-alloyed Fe35Ni35Cr20Mn10 high-entropy alloy

J Zhou, T Jiang, H Liao, H Chen, J Zheng, Y Zhang… - Intermetallics, 2022 - Elsevier
The effect of titanium-alloying on microstructure and mechanical properties of
Fe35Ni35Cr20Mn10 high-entropy alloy (HEA) was studied. The microstructure was …

[HTML][HTML] Dissolution-induced oxide synthesis using SiO2 microparticles for oxide dispersion strengthening of Fe-based alloys

HS Kim, SH Park - Journal of Materials Research and Technology, 2023 - Elsevier
This study reports on a single-track laser surface alloying process that utilizes SiO 2 powder
to disperse both SiO 2 particles and oxide inclusions in 316L stainless steel for oxide …

In situ neutron diffraction revealing the achievement of excellent combination of strength and ductility in metastable austenitic steel by grain refinement

W Mao, W Gong, S Harjo, S Morooka, S Gao… - Journal of Materials …, 2024 - Elsevier
The yield stress of Fe-24Ni-0.3 C (wt%) metastable austenitic steel increased 3.5 times
(158→ 551 MPa) when the average grain size decreased from 35 μm (coarse-grained [CG]) …

Cyclic deformation and microstructural evolution of 316L stainless steel with pre-charged hydrogen

Z Fu, L Jiang, Y Sun, J Jin, C Yu, M Zhao, Q Kan… - International Journal of …, 2024 - Elsevier
This study investigates the cyclic plastic deformation and microstructural evolution of
hydrogen-charged 316L stainless steel. The results of low-cycle fatigue tests indicate that …

[HTML][HTML] Revealing the microstructural evolution and mechanical response of repaired Fe–Cr–Si based alloy by directed energy deposition

SC Han, YS Lee, HJ Lee, M Kim, TS Jun - Journal of Materials Research …, 2024 - Elsevier
This study investigates the microstructure and mechanical properties of wear-resistant
hardfacing structures fabricated on an AISI 1045 carbon steel substrate using a specially …

Fatigue limits and crack growth thresholds in cyclic tension and bending of a stainless steel sheet

G Oh, A Umezawa - International Journal of Fatigue, 2025 - Elsevier
Many parts made of thin steel sheet are subjected to two types of loads: tension and
bending. In this study, we define and suggest novel fatigue failure criteria based on the …

Combined loading effect on high cycle fatigue fracture behaviors of a stainless steel welded structure of elbow and socket

G Oh, A Umezawa - International Journal of Fatigue, 2023 - Elsevier
In welded structures with complicated geometries and combined loading state, it is crucial to
establish the criteria for fatigue failure. High cycle fatigue tests under combined loading …