Revealing the deformation mechanisms of< 110> symmetric tilt grain boundaries in CoCrNi medium-entropy alloy

D Hua, Q Zhou, Y Shi, S Li, K Hua, H Wang, S Li… - International Journal of …, 2023 - Elsevier
The synergy of multiple deformation mechanisms responsible for the excellent mechanical
properties attracts an increasing interest in CoCrNi medium entropy alloy (MEA). In this …

A micropillar compression investigation into the plastic flow properties of additively manufactured alloys

SH Li, Y Zhao, J Radhakrishnan, U Ramamurty - Acta Materialia, 2022 - Elsevier
Solidification cells and a high density of dislocations are two common features of additively
manufactured (AM) alloys that are processed using techniques such as laser powder bed …

A (CrFeNi) 83 (AlTi) 17 high-entropy alloy matrix solid-lubricating composite with exceptional tribological properties over a wide temperature range

Y Geng, J Cheng, H Tan, Q Sun, J Chen, S Zhu… - Journal of Materials …, 2023 - Elsevier
High-entropy alloy matrix solid-lubricating composites (HSLCs) are promising anti-wear and
friction-reduced materials to meet the demands of complicated engineering applications …

Mesoscopic chemical heterogeneities in laser powder bed fused CoCrMo and Ni mixed powders and their effect on the mechanical properties

S Wei, Y Zhao, B Zhang, P Wang… - Materials Science and …, 2023 - Elsevier
Microstructural heterogeneity is a feature of common occurrence in alloys additively
manufactured using techniques such as laser powder bed fusion (LPBF). Additionally …

Distinct effects of in-situ and ex-situ hydrogen charging methods on the mechanical behavior of CoCrFeNi high-entropy alloy fabricated by laser-powder bed fusion

DH Lee, JY Jung, KH Lee, SY Lee, Y Zhao… - Journal of Alloys and …, 2023 - Elsevier
The hydrogen embrittlement behavior of CoCrFeNi high-entropy alloy (HEA) fabricated by
laser-powder bed fusion (L-PBF) under ex-situ and in-situ hydrogen charging conditions …

Mechanical properties of AlCoCrFeNi2. 1 EHEA controlled via the coherent nano-precipitated phase during hot rolling

X Du, Z Du, T Gong, B Sun, S Zhang, J Cheng… - Materials …, 2024 - Elsevier
In the present work, the AlCoCrFeNi 2.1 EHEA was hot rolled in multiple passes at different
temperatures and reductions. The L1 2/B2 lamellar eutectic structure of the as-cast alloy …

Dislocation mediated dynamic tension-compression asymmetry of a Ni2CoFeV0. 5Mo0. 2 medium entropy alloy

A Meng, X Chen, Y Guo, Y Lu, Y Zhao - Journal of Materials Science & …, 2023 - Elsevier
Although tension-compression (TC) asymmetry in yield strength was rarely documented in
coarse-grained face centered cubic (FCC) metals as critical resolved shear stress (CRSS) …

Dislocation Evolution in Cyclic‐Loaded Cu Nanopillars with Different Configurations

X Li, Z Zhao, Z Zhang, X Shao, X An, S Wei, H Zhou… - Small, 2024 - Wiley Online Library
Small‐sized metals generally exhibit unusual deformation responses subjected to cyclic
loading, since their limited volume cannot effectively accommodate micro‐sized dislocation …

Micropillar compression investigation on the mechanical behavior of Ni manufactured using laser powder bed fusion

SH Li, Y Zhao, KB Lau, P Wang, R Upadrasta - Materials Science and …, 2023 - Elsevier
Micropillar compression tests were performed on unalloyed Ni that was manufactured using
the additive manufacturing (AM) technique of laser powder bed fusion (LPBF) with …

Small-scale mechanical properties and deformation mechanisms of a laser welded CrCoNi medium-entropy alloy joint

H Li, Y Li, Y Nie, S Yan - Materials Science and Engineering: A, 2022 - Elsevier
Attributed to deformation twins, laser welded CrCoNi medium-entropy alloy joints exhibit
best combination of strength and ductility among the joints of Cantor alloy and its derivatives …