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. Room and elevated temperature tensile tests show that the LPSO structured phase contributes to the change of high temperature tensile properties. Key words: Mg-Gd-Y-Zn-Zr alloy; microstructure; LPSO...], the formation process of stable LPSO structured phase in Mg-10Gd-3Y-1.2Zn-0.4Zr (GWZK) alloy during heat treatment at 773 K was clearly discussed. The purpose of the present work is to study the LPSO structure......
Trans. Nonferrous Met. Soc. China 27(2017) 63-72 Precipitation behavior of 14H LPSO structure in single 18R phase Mg-Y-Zn alloy during annealing at 773 K Huan LIU1,2, Kai YAN3, Jing-li YAN4, Feng... was thermally stable and was not transformed into 14H long period stacking ordered (LPSO) phase during annealing. However, 14H lamellas formed within tiny α-Mg slices, and their average size and volume......
Trans. Nonferrous Met. Soc. China 27(2017) 2381-2389 Effects of solid solution treatment and cooling on morphology of LPSO phase and precipitation hardening behavior of Mg-Dy-Ni alloy Li-tao YUAN1...: Effects of solid solution treatment and cooling on the morphology of long period stacking order (LPSO) phase and precipitation hardening behavior of Mg-2Dy-0.5Ni (molar fraction, %) alloy were......
Mg-Gd-Zn-Zr合金中的LPSO结构和时效相曾小勤1,2,吴玉娟3,彭立明4,林栋樑3,丁文江3,彭赢红5(1.上海市上海交通大学材料科学与工程学院上海市镁材料及应用工程技术研究中心2.上海市上海交通大学材料科学与工程学院金属基复合材料国家重点实验室3.上海交通大学 材料科学与工程学院 轻合金精密成型国家工程研究中心4.上海交通大学 材料科学与工程学院,轻合金精密成型国家工程研究中心,上海 2000305.上海交通大学 机械与动力工程学院)摘 要:为了研究Mg-Gd-Zn-Zr合金中的长周期堆垛有序(LPSO)结构的形成及其演化,对铸态,固溶态和时效态Mg96.32Gd2.50Zn1.00Zr0.18合金的显微组织进行了观察.OM,SEM和TEM观察表明,合金铸态组织由α-Mg固溶体,晶内层片状......
with LPSO phase is lower than that of the alloys with W phase, which is associated with the freezing range of the alloys. However, the investigated alloys displayed the same fluidity. Under T6... with LPSO phase compared to that of the alloys with W phase. Mg-2.5Zn-3.7Y-0.3Zr (mass fraction, %) alloy with LPSO phase possessed high castability and mechanical properties, with a corrosion rate of 2 mm......
of 14H LPSO phase on dynamic recrystallization behavior and hot workability of Mg-2.0Zn-0.3Zr-5.8Y alloy[J]. Materials Science and Engineering A, 2014, 599: 150-159. [25] ITOI T, TAKAHASHI K, MORIYAMA H... rolling[J]. Journal of Alloys and Compounds, 2012, 524: 46-52. Influences of rolling processes on LPSO phase, microstructure and property of Mg-Gd-Y-Zn-Mn alloy WANG Jing-feng1, 2, 3, HUANG Xiu-hong1, 2......
Abstract: The microstructure of the 18R-type long period stacking ordered (LPSO) phase in Mg97Y2Zn1 alloy was investigated by the first principles calculation. The arrangement rule of Zn and Y atoms...]. These excellent properties are considered to be due to the hcp (2H)-Mg fine grain matrix of 100–200 nm in diameter, a novel long-period stacking ordered (LPSO) phase and homogeneously dispersed Mg24Y5 fine......
, 2016, 26(8): 1588-1596. WANG Jing-feng, HUANG Xiu-hong, XIE Fei-zhou, HUANG Song, HOU Fan, PAN Fu-sheng. Influences of rolling processes on LPSO phase, microstructure and property of Mg-Gd-Zn-Mn alloy... and microlardness tester. The microstructures of the as-cast alloy mainly consist of α-Mg dendrites, the 18R-long period stacking ordered (LPSO) phase distributes among α-Mg dendrites and a small number of MgDy3......
composed of α-Mg, (Mg, Zn)xDy phase and a large number of long period stacking ordered (LPSO) phases distributed along the extrusion direction. The compressive experimental results show that the alloy sheet...%, respectively. The compressive anisotropy is mainly attributed to the distribution of LPSO phase and formation of fiber texture in the deformed grains. Key words: Mg-Dy-Zn alloy; microstructure......
strength of 271 MPa, and an elongation of 3.5% after solution treatment at 500 °C for 12 h and aging at 200 °C for 114 h. In contrast to the LPSO phase, the β′ phase seems to play a more important role... of eutectic phase extending into the interior of grains in unique orientation. The lamellar phases had specific orientation relationship with α-Mg matrix, and they were identified as LPSO structures......
