Investigation of strengthening mechanisms in an additively manufactured Haynes 230 alloy

B Yang, Z Shang, J Ding, J Lopez, W Jarosinski, T Sun… - Acta Materialia, 2022 - Elsevier
There are abundant studies on additive manufacturing of Ni alloys, such as Inconel 718.
However, the studies on the microstructure and the deformation behavior of solid solution …

Experimental molecular dynamics for individual atomic-scale plastic events in nanoscale crystals

S Zheng, S Shinzato, S Ogata, SX Mao - … of the Mechanics and Physics of …, 2022 - Elsevier
The experimental determination of critical stresses for yielding and plastic flow is of upmost
importance for the understanding of the atomic-scale mechanical behaviors of nanoscale …

Effect of post process shear straining on structure and mechanical properties of 316 L stainless steel manufactured via powder bed fusion

L Kunčická, R Kocich, G Németh, K Dvořák… - Additive Manufacturing, 2022 - Elsevier
Abstract Powder Bed Fusion (PBF) has become popular despite the fact that PBF-prepared
components feature characteristic defects. Their performance, however, can be shifted to the …

Work hardening behavior of dual phase copper–iron alloy at low temperature

T Yamashita, N Koga, T Kawasaki, S Morooka… - Materials Science and …, 2021 - Elsevier
In-situ neutron diffraction measurements were performed on a cold-rolled copper-iron (Cu–
Fe) alloy during tensile tests at 293 K and 150 K. The alloy was composed of face-centered …

Revealing morphology rules of MX precipitates in Ti-V-Nb multi-microalloyed steels

Y Tian, H Yu, T Zhou, K Wang, Z Zhu - Materials Characterization, 2022 - Elsevier
Despite a large number of studies relevant to MX (M= Ti, V, Nb; X= C, N) precipitation in
microalloyed steels, the evolution rules of the precipitate morphology remain unclear. In this …

Abnormal grain growth in ultrafine grained Ni under high-cycle loading

A Barrios, Y Zhang, X Maeder, G Castelluccio… - Scripta Materialia, 2022 - Elsevier
Abnormal grain growth can occur in polycrystalline materials with only a fraction of grains
growing drastically to consume other grains. Here we report abnormal grain growth in …

A constitutive framework for micro-to-macroplasticity of crystalline materials under monotonic and cyclic deformation

W Liu, F Zhao, L Yu, Y Cheng, H Duan - … of the Mechanics and Physics of …, 2023 - Elsevier
Microplasticity, a behavior lies between elasticity and macroplasticity, is not only closely
related to the origin of plasticity in crystalline materials, but also profoundly affects the …

Microstructure control and hot cracking behavior of the new Ni-Co based superalloy prepared by electron beam smelting layered solidification technology

H Cui, Y Tan, L Ning, R Bai, X You, C Cui… - Journal of Materials …, 2024 - Elsevier
The prevention of hot cracking formation is of utmost importance in the production of the new
Ni-Co based superalloys through the utilization of the electron beam smelting layered …

Estimation of stress in specimens loaded with ultrasonic fatigue machines

V Jacquemain, N Ranc, C Cheuleu, V Michel… - International Journal of …, 2021 - Elsevier
Piezo-electric ultrasonic fatigue machines are used to carry out fatigue tests more rapidly
than what is possible using other technologies, at a frequency of 20 kHz. The very high cycle …

Microstructure, crack formation and improvement on Nickel-based superalloy fabricated by powder bed fusion

Y Wang, W Guo, H Zheng, Y Xie, X Zhang, H Li… - Journal of Alloys and …, 2023 - Elsevier
ABSTRACT Nickel-based superalloy (Haynes 230) parts were fabricated by powder bed
fusion using a laser-based system. Crack defects were unavoidable. In order to solve the …