Enhanced strength and plasticity of Mg-6Zn-0.5Zr alloy by low-temperature indirect extrusion

被引：21

作者：

Kim, Beomcheol ^{[1
]}

Baek, Soo-Min ^{[1
]}

Lee, Jung Gu ^{[2
]}

Park, Sung Soo ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Sch Mat Sci & Engn, Ulsan 44919, South Korea

[2] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 44610, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 706卷

基金：

新加坡国家研究基金会;

关键词：

Magnesium alloys; Extrusion; Grain refinement; Strength; Superplasticity; ZN-ZR ALLOY; GRAIN-REFINEMENT; MAGNESIUM ALLOY; STRUCTURAL SUPERPLASTICITY; DYNAMIC RECRYSTALLIZATION; MECHANICAL-PROPERTIES; ZK60; ALLOY; MG ALLOYS; BEHAVIOR; DEFORMATION;

D O I：

10.1016/j.jallcom.2017.02.206

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The microstructure and tensile properties of Mg-6Zn-0.5Zr alloy processed by low-temperature indirect extrusion utilizing artificial cooling were investigated. Remarkable grain refinement was obtained by the application of artificial cooling, resulting in an increase in the yield strength of as much as 53 MPa at room temperature, as compared to the case (245 MPa) of indirect extrusion without artificial cooling. Besides this, the fine-grained alloy was found to have superplastic properties at elevated temperature, revealing tensile elongations of 720-810% at 200 degrees C at strain rates of 2 x 10(-4)-1 x 10(-3) s(-1). Mechanisms responsible for the high strength and superplastic properties are discussed. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：56 / 62

页数：7

共 50 条

[41] Enhanced Strength-Ductility Synergy in Mg-0.5 wt%Ce Alloy by hot Extrusion
Hui Yu
Yu Liu
Ya Liu
Dongliang Wang
Yuling Xu
Binan Jiang
Weili Cheng
Lixin Huang
Weineng Tang
Wei Yu
Metals and Materials International, 2023, 29 : 2109 - 2116
[42] Mechanism of high-strength and ductility of Mg-RE alloy fabricated by low-temperature extrusion and aging treatment
Jin, Xueze
Xu, Wenchen
Shan, Debin
Guo, Bin
Jin, Bo Cheng
MATERIALS & DESIGN, 2021, 199
[43] Unveiling synergistic strength and plasticity enhancement of Mg-Zn-Mn alloy via closed forging extrusion
Jing, Xuerui
Zhou, Shibo
Ouyang, Sihui
She, Jia
Peng, Peng
Tang, Aitao
Pan, Fusheng
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 31 : 3466 - 3479
[44] High strength Mg-Zn-Y-Ce-Zr alloy bars prepared by RS and extrusion technology
Guo, XF
Kinstler, J
Glazman, L
Shechtman, D
MAGNESIUM - SCIENCE, TECHNOLOGY AND APPLICATIONS, 2005, 488-489 : 495 - 498
[45] Fabrication of High-Strength Mg–Gd–Nd–Zn–Sn–Zr Alloy via Extrusion and Aging
Zehua Yan
Yandong Yu
Jiahao Qian
Junting Luo
Yanchao Sang
Metals and Materials International, 2021, 27 : 4182 - 4194
[46] Low-temperature superplasticity of extruded Mg-Sn-Al-Zn alloy
Park, S. S.
You, B. S.
SCRIPTA MATERIALIA, 2011, 65 (03) : 202 - 205
[47] Achieving superior strength-ductility synergy in a heterostructured magnesium alloy via low-temperature extrusion and low-temperature annealing
Wang, H.
Zhang, D. T.
Qiu, C.
Zhang, W. W.
Chen, D. L.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2023, 163 : 32 - 44
[48] Achieving high-strength in Mg-0.8Zn-0.2Zr (wt.%) alloy extruded at low temperature
Zhang, Deping
Zhang, Dongdong
Xu, Tao
Chen, Shanrong
Zhang, Yaqin
Li, Xinlin
Zhang, Jinhui
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 822
[49] Influence of Er addition and extrusion temperature on the microstructure and mechanical properties of a Mg-Zn-Zr magnesium alloy
Zhang, Jing
Li, Weiguo
Zhang, Baoxiang
Dou, Yuchen
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (13-14): : 4740 - 4746
[50] Effect of extrusion temperature on microstructure, thermal conductivity and mechanical properties of a Mg-Ce-Zn-Zr alloy
Hu, Ling-Fei
Gu, Qin-Fen
Li, Qian
Zhang, Jie-Yu
Wu, Guang-Xin
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 741 : 1222 - 1228

← 1 2 3 4 5 →