Results 191 to 200 of about 6,132 (254)

Composition and structure evolution of LPSO phase in Mg-Gd-Y-Zn-Zr homogenised by pulsed current

Philosophical Magazine A
Here it was found that the homogenisation for rare earth magnesium alloy can be performed under pulsed current (422°C/10 min), which is superior to the traditional industry one (520°C/720 min).
Di Wang, Shuyang Qin, Chaoran Guo, Hao Chen, Shibo Men, Xuemeng Kong, Lingkun Xiao, Weijie Ren, Jingna Sun, Pengfei Wang, Luhan Hao, Huagui Huang   +11 more
semanticscholar   +1 more source

Hydrogen storage properties of Mg98.5Gd1Zn0.5 and Mg98.5Gd0.5Y0.5Zn0.5 alloys containing LPSO phases

International Journal of Hydrogen Energy, 2021
Abstract In this work, the as-cast Mg-rich Mg98.5Gd1Zn0.5 and Mg98.5Gd0.5Y0.5Zn0.5 alloys are prepared by the semi-continuous casting method, and their hydrogen storage performance and catalytic mechanisms are investigated by experimental and first-principles calculations approaches.
J.H. He, J. Zhang, X.J. Zhou, J.N. Chen, L.P. Yu, L.K. Jiang, X.Z. Lu, X.M. Chen, D.W. Zhou   +8 more
openaire   +1 more source

Fascinating LPSO-Structured Mg Alloys

2016
Recent successful alloy-design showed that Mg alloys with addition of a small amount of Zn and Y (or rare-earth elements) reveal excellent mechanical properties including remarkably improved strength with a reasonable ductility [1,2]. One of the prominent microstructural features, which are believed to contribute for these excellent properties, is ...
openaire   +1 more source

Quench sensitivity characterization of a LPSO-phase containing Mg alloy

Materials Science and Engineering: A, 2019
Abstract The quench sensitivity of a long period stacking ordered (LPSO) phase containing Mg alloy, Mg–12Gd–0.8Zn–0.4Zr (GZ1208K) (wt%), was characterized under the water cooling (WC) and air cooling (AC) conditions. GZ1208K alloy indicates significant quench sensitivity, that is, the yield strength (YS) of GZ1208K-WC alloy is 25.2% and 21.6% higher ...
Dan Wang, Penghuai Fu, Liming Peng, Yingxin Wang, Wenjiang Ding   +4 more
openaire   +1 more source

Room temperature deformation of LPSO structures by non-basal slip

Materials Science and Engineering: A, 2017
We investigated the deformation mechanisms of long period stacking ordered (LPSO) structures in an extruded Mg97Y2Zn1 (at%) alloy. Tensile deformation was performed in such a way that basal slip and kink band formation were inhibited. Slip trace analysis and transmission electron microscopy reveal a predominant activity of non-basal slip.
Chen, R., Sandlöbes, S., Zeng, X., Li, D., Korte-Kerzel, S., Raabe, D.   +5 more
openaire   +2 more sources

Enhancing Electrochemical Kinetics and Stability of Biodegradable Mg-Y-Zn Alloys with LPSO Phases via Strategic Micro-Alloying with Ca, Sr, Mn, and Zr

Crystals
This study systematically investigated the effects of biologically relevant microalloying elements—calcium (Ca), strontium (Sr), manganese (Mn), and zirconium (Zr)—on the electrochemical behavior of Mg-Y-Zn alloys containing long-period stacking ordered (
Lisha Wang, Huiping Wang, Chenchen Zhang, Wei Sun, Yue Wang, Lijuan Wang, Xiaoyan Kang   +6 more
semanticscholar   +1 more source

New polytypes of LPSO structures in an Mg–Co–Y alloy

Philosophical Magazine, 2016
AbstractThe magnesium alloys containing long-period stacking ordered (LPSO) structures exhibit excellent mechanical properties. Each LPSO structure is known to contain either AB′C′A or AB′C building block and feature its own stacking sequences. By atomic-scale high-angle annular dark field scanning transmission electron microscopy, we find the co ...
Q. Q. Jin, X. H. Shao, X. B. Hu, Z. Z. Peng, X. L. Ma   +4 more
openaire   +1 more source

Evolution of LPSO Phase in Hot Deformation of as‐Forged Mg‐9Gd‐3Y‐2Zn‐0.3Zr Alloy and its Effect on Microstructure and Recrystallization Mechanism

Advanced Engineering Materials
In this article, the hot deformation behavior of as‐forged Mg‐9Gd‐3Y‐2Zn‐0.3Zr alloy is investigated by using Gleeble 3500 thermomechanical simulation under 350–500 °C, strain rates of 0.01–10 s−1, and 60% deformation.
Longjie Dang, Bing Zhang, Zengwen Zhang, Zhiqiang Lei, Zhijuan Zhang, Zhaolin Wang, Jie Zhao, Shancheng Zhan, Kuaishe Wang   +8 more
semanticscholar   +1 more source

Unified Understanding of Strengthening Mechanisms Acting in Mg/LPSO Two-Phase Extruded Alloys with Varying LPSO Phase Volume Fraction

MATERIALS TRANSACTIONS, 2023
Koji Hagihara, Toko Tokunaga, Kazuki Yamamoto, Michiaki Yamasaki, Tsuyoshi Mayama, Takumi Shioyama, Yoshihito Kawamura, Takayoshi Nakano   +7 more
openaire   +1 more source

Superplasticity in a Chip-Consolidated Mg97Zn1Y2 Alloy with LPSO Phase

2018
Novel Mg97Zn1Y2 alloy of equiaxed fine grains with long-period stacking ordered (LPSO) phase was prepared by consolidation of chips machined from a twin-roll-cast alloy. The chip-consolidated Mg97Zn1Y2 alloy exhibited superplasticity at a wide initial strain-rate ranging from 1 × 10−3 to 3 × 10−1 s−1 at temperatures of 623 and 673 K.
Kazuha Suzawa, Shin-ichi Inoue, Michiaki Yamasaki, Yoshihito Kawamura, Michimasa Miyanaga, Katsuhito Yoshida, Nozomu Kawabe   +6 more
openaire   +1 more source