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Aging characteristics and high temperature properties of Mg-9Gd-3Y-0.3Zr
YAO Su-juan(姚素娟)1, 2, YI Dan-qing(易丹青)1, YANG Sheng(杨胜)1, LI Wang-xing(李旺兴)2
1. School of Materials Science... at room temperature, and microvoid coalescence fracture at 250-300 ℃.
Key words: magnesium alloy; rare earth; aging treatment; tensile property
Abstract: Creep age forming techniques have been widely used in aerospace industries. In this study, we investigated the effect of aging temperature (143 °C-163 °C) on the creep behavior of Al-Li-S4 aluminum alloy and their mechanical properties at room temperature. The mechanical properties were tested by tensile testing, and the microstructural evolution at different aging temperatures......Creep behavior and mechanical properties of Al-Li-S4 alloy at different aging temperatures
来源： 《中南大学学报(英文版)2020年第4期》——湛利华 赵兴 周畅 申儒林 喻海良 黄明辉 LI He(李贺) 杨有良 胡立彬 刘德博 胡正根
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transition temperature in lead titanate doped with lanthanum increases during aging at ferroelectric phase was reported. It is well known that lattice defects, such as vacancies and solute atoms...Aging Effect on Lanthanum Doped Ferroelectric Lead Titanate Ceramics Jin Xueqin1,Zhu Yudan1,Zhu Jie1,Sun Dazhi1 (1.Department of Chemistry, Shanghai Normal University, Shanghai 200234, China......
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and ductility can be obtained after solution treated below beta transus temperature. Key words: beta titanium alloy; Ti-B20; aging treatment; tensile properties; microstructure 1 Introduction Metastable beta... that the higher the aging temperature, the lower the hardness. It is about 1 h when the hardness reaches peak values at all testing temperatures. As a comparison, Ti-3Al-8V-6Cr-4Mo-4Zr alloy needs aging......
been established that α and ω phase precipitates appear depending on aging temperature and time in hardenable (α+β) or metastable β alloys [5-6]. The homogeneous nucleation and subsequent growth... properties. At the aging temperature of 400 ℃, fine α phase platelets are formed as the bands on specific crystallographic planes, as shown in Fig.2(c). Fig.3 shows the micrographs taken from samples......
in Fig.4 and there is very small difference in their crystal lattice constants, α′keeps well coherent relationship with αf. Lower aging temperature and shorter aging duration result in the incompleteness... Aging microstructural characteristics of ZA-27 alloy and SiCp/ZA-27 composite LI Zi-quan(李子全), ZHOU Heng-zhi(周衡志), LUO Xin-yi(骆心怡), WANG Tao(汪 涛), SHEN Kai(沈 凯) College of Materials......
