Ultrahigh yield strength and large uniform elongation achieved in ultrafine-grained titanium containing nitrogen

Y Chong, T Tsuru, B Guo, R Gholizadeh, K Inoue… - Acta Materialia, 2022 - Elsevier
In this study, we systematically investigated the influences of nitrogen content and grain size
on the tensile properties and deformation behaviors of titanium at room temperature. By high …

Refined grain formation behavior and strengthening mechanism of α-titanium with nitrogen fabricated by selective laser melting

A Issariyapat, P Visuttipitukul, J Umeda, K Kondoh - Additive Manufacturing, 2020 - Elsevier
Customized titanium 3D parts with good mechanical performance have attracted
considerable attention for application in structural industries. In this study, α-Ti materials with …

In-situ nitrogen strengthening of selective laser melted Ti6Al4V with superior mechanical performance

L Liu, C Chen, R Zhao, X Wang, H Tao, S Shuai… - Additive …, 2021 - Elsevier
The in-situ strengthening approach has attracted increasing attention in the selective laser
melting (SLM) of high-performance alloy. In the present work, the argon-nitrogen (Ar-N 2) …

In-situ synthesis of spatial heterostructure Ti composites by laser powder bed fusion to overcome the strength and plasticity trade-off

Y Xiao, Y Yang, D Wang, H Zhou, Z Liu, L Liu… - International Journal of …, 2024 - Elsevier
Recent research has focused on laser in-situ additive manufacturing of metal matrix
composites with spatially controllable microstructures (phases). This study, inspired by the …

Quantitative strengthening evaluation of powder metallurgy Ti–Zr binary alloys with high strength and ductility

K Kondoh, M Fukuo, S Kariya, K Shitara, S Li… - Journal of Alloys and …, 2021 - Elsevier
Titanium is well-known for its high strength, good corrosion resistance, and biocompatibility.
For further improvement of its mechanical properties, it is alloyed with other elements, such …

Tensile properties improvement by homogenized nitrogen solid solution strengthening of commercially pure titanium through powder metallurgy process

A Issariyapat, P Visuttipitukul, T Song, A Bahador… - Materials …, 2020 - Elsevier
In this study, interstitial solid solution behavior of nitrogen atoms dissolved in commercially
pure Ti fabricated by spark plasma sintering (SPS) followed by the extrusion process was …

Selective laser-melted titanium materials with nitrogen solid solutions for balanced strength and ductility

K Kondoh, A Issariyapat, J Umeda… - Materials Science and …, 2020 - Elsevier
This investigation presents a selective laser melting strategy for fabricating high nitrogen-
content Ti (Ti-N) materials. Unlike conventional cast Ti materials, Ti-N materials produced in …

Ductility improvement of high-strength Ti–O material upon heteromicrostructure formation

S Kariya, A Issariyapat, A Bahador, J Umeda… - Materials Science and …, 2022 - Elsevier
Oxygen solid solutions are well known to impose a strong hardening effect on Ti and its
alloys, but induce the undesirable embrittlement behavior. In order to improve the ductility of …

High Strength and High Wear‐Resistant Ti Composites Fabricated by Powder Metallurgy Pressureless Sintering

Y Liu, Y Pan, J Sun, F Kuang, A Yu… - Advanced Materials …, 2022 - Wiley Online Library
In this work, high strength and high wear‐resistant titanium matrix composites (TMCs)
reinforced with in situ TiC derived from pyrolysis of polysilazane (PSZ) are fabricated …

Additive manufacturing of the high-strength and low modulus biomedical Ti-10 Nb alloy under reactive atmosphere

JW Zhang, YP Dong, JC Tang, DW Wang, WJ Lu… - Materials Today …, 2022 - Elsevier
In situ enhancement of alloy properties via additive manufacturing is a convenient and
promising approach that is attracting increasing attention. Herein, we overcame the …