Significant disparity of non-basal dislocation activities in hot-rolled highly-textured Mg and Mg-3Al-1Zn alloy under tension

D Zhao, X Ma, A Srivastava, G Turner, I Karaman… - Acta Materialia, 2021 - Elsevier
It is well-established that Mg-3Al-1Zn (AZ31) alloy exhibits much better tensile ductility than
pure Mg. However, the underlying mechanisms for such difference still remain relatively …

Exploring the origins of the indentation size effect at submicron scales

X Ma, W Higgins, Z Liang, D Zhao… - Proceedings of the …, 2021 - National Acad Sciences
The origin of the indentation size effect has been extensively researched over the last three
decades, following the establishment of nanoindentation as a broadly used small-scale …

Significant lattice-distortion effect on compressive deformation in Mo-added CoCrFeNi-based high-entropy alloys

J Li, K Yamanaka, A Chiba - Materials Science and Engineering: A, 2022 - Elsevier
Large lattice distortion is an essential feature of high-entropy alloys (HEAs). Herein, the
deformation behaviors of three types of as-cast CoCrFeNi-based HEAs, which contained 0 …

Structure and substructure characterization of solution-treated Ni50. 3Ti29. 7Hf20 high-temperature shape memory alloy

J Dong, T Umale, B Young, I Karaman, KY Xie - Scripta Materialia, 2022 - Elsevier
We investigate the structure and substructure of the solution-treated martensitic Ni 50.3 Ti
29.7 Hf 20 high-temperature shape memory alloy (SMA) by transmission electron …

[HTML][HTML] Friction-based riveting technique for AZ31 magnesium alloy

T Wang, S Whalen, X Ma, J Silverstein, H Das… - Journal of Magnesium …, 2022 - Elsevier
A new friction-based riveting technique, Rotating Hammer Riveting (RHR), is demonstrated
to fully form AZ31 Mg rivet heads in a mere 0.23 s. Heat and pressure generated through …

Effect of high strain rate on adiabatic shearing of α+ β dual-phase Ti alloy

F Hao, Y Du, P Li, Y Mao, D Lin, J Wang, X Gao… - Materials, 2021 - mdpi.com
In the present work, the localized features of adiabatic shear bands (ASBs) of our recently
designed damage tolerance α+ β dual-phase Ti alloy are investigated by the integration of …

[HTML][HTML] Microstructure evolution of pure titanium during hydrostatic extrusion

D Wojtas, Ł Maj, K Wierzbanowski, A Jarzębska… - Archives of Civil and …, 2022 - Springer
Regarding severely deformed materials of potentially high applicability in various industry
branches, their microstructure evolution during processing is of vast significance as it …

Persistence of crystal orientations across sub-micron-scale “super-grains” in self-organized Cu-W nanocomposites

D Yadav, D Zhao, JK Baldwin, A Devaraj… - Scripta Materialia, 2021 - Elsevier
We use precession electron diffraction to investigate the crystallographic character of copper
(Cu)-tungsten (W) nanocomposites fabricated via physical vapor co-deposition at 400° C …

Self-organized high-hardness thermal spray coatings

I McCue, B Gaskey, M Brupbacher… - Available at SSRN …, 2021 - papers.ssrn.com
We present a new dealloying-based technique to form fully-dense and high-hardness metal
composite coatings. By depositing then heat treating a TiCr alloy coating on a Ni-base …

Activation and Suppression of Non-Basal Slip and Extension Twinning in Magnesium and Magnesium Alloys

D Zhao - 2021 - search.proquest.com
Magnesium (Mg) and its alloys are promising lightweight and high specific strength
structural materials, especially for transportation and aerospace applications. However, pure …