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Abstract: Magnesium alloy’s creep stress exponent and creep mechanism at the room temperature were analyzed by TEM. Relationship among strain, stress... plane, and twinning improves creep deformation.
Key words: magnesium alloy; room-temperature creep; twinning; slipping
Cavitation and grain boundary sliding during creep of Mg-Y-Nd-Zn-Mn alloy
V. JAN?K1, F. HNILICA1, P. ZUNA1, V. O?EN??EK2, I. STUL?KOV?3
1. Department of Materials Engineering, Faculty...;
Abstract: Creep of squeeze-cast Mg-3Y-2Nd-1Zn-1Mn alloy was investigated at the constant......Cavitation and grain boundary sliding during creep of Mg-Y-Nd-Zn-Mn alloy
来源： 《中国有色金属学报(英文版)2008年增刊第1期》——V. JANíK F. HNILICA P. ZUNA V. OCENáSEK I. STULíKOVá
that the increase in ageing temperatures accelerates the progress of the entire creep, and both the creep strains and the room-temperature mechanical properties after creep ageing increase... J. Cent. South Univ. (2021) 28: 2285-2294 DOI: https://doi.org/10.1007/s11771-021-4769-8 Influence of temperature on creep behavior, mechanical properties and microstructural evolution of an Al-Cu......
was examined by transmission electron microscopy. Results show that the creep strains and the room-temperature mechanical properties after creep aging increase with the aging temperature. As the aging... universal testing machine at a crosshead speed of 2 mm/min at room temperature. Microstructures of the creep aged Al-Cu-Li alloy were examined by TEM. The precipitation behavior of the alloy was analyzed......
: A Room-temperature tensile plasticity of BT18y titanium alloy with equiaxed structure and fully lamellar structure YANG Yi, HUANG Ai-jun, XU Feng, LI Ge-ping (Titanium Alloy Laboratory, Institute... were tested at room temperature. Optical microscope, transmission electron microscope (TEM) and scanning electron microscope (SEM) were used to investigate the relationship between microstructures......
High-temperature creep properties of uranium dioxide pellet GAO Jia-cheng(高家诚), WANG Liang-fen(王良芬), WANG Yong(王 勇), WU Shu-fang(吴曙芳) College of Materials Science and Engineering, Chongqing...; Abstract: High-temperature creep properties of sintered uranium dioxide pellets with two grain sizes (9.0 μm and 23.8 μm) were studied......
the best mechanical properties at room temperature. 3) Pb has negative effects on the compressive creep resistance of the as-cast Mg-Sn alloy. The Mg-5%Sn alloy shows the best compressive creep behavior... the distribution of Mg2Sn phase. Pb exists in the Mg2Sn phase or dissolves in α-Mg matrix. The mechanical properties of the tested alloys at room temperature are improved with the addition of Pb......
and decomposes to Al2La and Al at high temperature. Creep resistance of AEC422 is significantly improved compared with that of AE42. The microstructure of AEC422 has no obvious changes after creep test..., when the temperature is above 150℃, its creep resistance drops abruptly, which limits its further application in automotive industry[2]. Calcium additions have good effects on creep resistance......
: titanium matrix composite; hot-rolling; deformation amount; microstructure; room-temperature mechanical properties 非连续增强的钛基复合材料具有较好的高温力学性能及抗蠕变性能,已得到广泛研究[1-3].采用原位自生的方法可以获得非连续增强的钛基复合材料,并且在采用原位自生方法获得的材料中,增强体...材料的室温应力-应变曲线 Fig.2 Stress-strain curves of titanium matrix composites with different deformation amounts at room temperature 表1 不同变形量下复合材料的室温拉伸性能 Table 1 Mechanical properties......
strength and elongation at room temperature[5]. Compared with the AZ91D alloy, the mechanical property of AZ91D alloy strengthened by the quasicrystalline has been improved[6]. YUAN et al[7] reported... results in a great increase of steady-stage creep rate and total creep strain at the creep temperature of 200 ?C. It can be attributed to the extreme creep test condition. The values of steady-stage......
