Results 51 to 60 of about 6,132 (254)

Polytypes of long-period stacking structures synchronized with chemical order in a dilute Mg-Zn-Y alloy

, 2011
A series of structural polytypes formed in an Mg-1at.%Zn-2at.%Y alloy has been identified, which are reasonably viewed as long-period stacking derivatives of the hcp Mg structure with alternate AB stacking of the close-packed atomic layers.
Abe, E., Itoi, T., Kawamura, Y., Ono, A., Yamasaki, M.   +4 more
core   +1 more source

Excellent strength-ductility balance of fully recrystallized fine-grained Mg-Y-Zn-Ni extrusion alloy with 14H-LPSO lamellas

Materials Research Letters
Simultaneously improving strength and ductility is a challenge for Mg alloys. Herein, we report a strong and ductile Mg90Y4Zn2Ni4 (at. %) extrusion alloy with yield strength of 426 MPa, ultimate tensile strength of 451 MPa and elongation of 25 ...
Wenyu Liu, Wei Liu, Zhuo Song, Yuntao Zhang, Chuan Shuai, Taoze Xie, Hua Hou, Yu-hui Zhao   +7 more
semanticscholar   +1 more source

Optimal analog wavelet bases construction using hybrid optimization algorithm [PDF]

, 2016
An approach for the construction of optimal analog wavelet bases is presented. First, the definition of an analog wavelet is given. Based on the definition and the least-squares error criterion, a general framework for designing optimal analog wavelet ...
He, Yigang, Li, Hongmin, Sun, Yichuang
core   +3 more sources

Effects of extrusion on Young’s modulus and internal friction of magnesium alloys with various long period ordered structure content

Frontier Materials & Technologies
The relevance of this work stems from the growing interest in magnesium alloys with long period ordered structure (LPSO) due to their unique mechanical properties.
Vladimir V. Kaminskii, Dmitrii A. Kalganov, Maksim V. Dorogov, Sergei A. Philippov, Alexey E. Romanov   +4 more
doaj   +1 more source

Effect of lamellar LPSO phase on mechanical properties and damping capacity in cast magnesium alloys

Journal of Materials Research and Technology, 2023
The effect of the lamellar long period stacking order (LPSO) phase on both mechanical properties and damping capacity of magnesium alloys is still vague.
Cong Dang, Jingfeng Wang, Jinxing Wang, Di Yu, Wenxuan Zheng, Changbing Xu, Ruopeng Lu   +6 more
doaj   +1 more source

Characterization of Active Deformation Mechanisms in Mg Alloys with LPSO Phase

Acta Physica Polonica A, 2018
The WZ21 and the WZ72 magnesium alloys containing long period stacking ordered (LPSO) phase extruded with an extrusion ratio of 4:1 at 350C. The microstructure was analyzed by scanning electron microscopy using electron backscattered diffraction. Both alloys exhibit bimodal microstructure of the Mg matrix and elongated LPSO phase along the extrusion ...
Horváth, Klaudia, Drozdenko, Daria, Máthis, K., Garcés, Gerardo, Dobroň, P.   +4 more
openaire   +2 more sources

Formation and transformation of metastable LPSO building blocks clusters in Mg-Gd-Y-Zn-Zr alloys by spinodal decomposition and heterogeneous nucleation

Journal of Magnesium and Alloys
To study the formation and transformation mechanism of long-period stacked ordered (LPSO) structures, a systematic atomic scale analysis was conducted for the structural evolution of long-period stacked ordered (LPSO) structures in the Mg-Gd-Y-Zn-Zr ...
Xin Zhao, Zhong Yang, Jiachen Zhang, Minxian Liang, Liying Wang   +4 more
doaj   +1 more source

Enhanced mechanical properties and degradation rate of Mg–Ni–Y alloy by introducing LPSO phase for degradable fracturing ball applications

Journal of Magnesium and Alloys, 2020
In this work, as-cast Mg–Ni–Y alloys were proposed to develop a feasible material for fracturing balls, and their mechanical performance and corrosion behavior were systematically investigated.
Jingfeng Wang, Shiqing Gao, Xiuying Liu, Xing Peng, Kui Wang, Shijie Liu, Weiyan Jiang, Shengfeng Guo, Fusheng Pan   +8 more
doaj   +1 more source

Effect of long-period stacking ordered structure on very high cycle fatigue properties of Mg-Gd-Y-Zn-Zr alloys

Journal of Magnesium and Alloys, 2023
Magnesium alloys with a long-period stacking ordered (LPSO) structure usually possess excellent static strength, but their fatigue behaviors are poorly understood. This work presents the effect of the LPSO structure on the crack behaviors of Mg alloys in
Xiangyu WANG, Chao HE, Xue Li, Lang LI, Yongjie LIU, Qingyuan WANG   +5 more
doaj   +1 more source

Strain-rate dependence of deformation behavior of LPSO-phases

Materials Letters, 2018
Abstract This is the first report clarifying the influence of the strain rate on the deformation behavior of Mg-based long-period stacking ordered (LPSO) phases with 14H, 18R, and 10H structures. The flow stress by basal slip showed a weakly positive or negligible strain-rate dependence, while the flow stress accompanied by the formation of ...
Hagihara, Koji, Li, Zixuan, Yamasaki, Michiaki, Kawamura, Yoshihito, Nakano, Takayoshi   +4 more
openaire   +2 more sources