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alloys. Key words: Al-Cu alloy; re-dissolution; ECAP; precipitated phase ... morphology characteristic of the θ″ phase and matrix as Ref.[15]. After four passes, the amount of θ″ phase decreases rapidly and becomes fragments, as shown in Fig.3(b). The interfaces between precipitated......
Precipitation behavior and effect of new precipitated β phase in AZ80 magnesium alloy TANG Wei(唐 伟), HAN En-hou(韩恩厚), XU Yong-bo(徐永波), LIU Lu(刘 路) Institute of Metal Research, Chinese Academy....[3-13]. However, a new precipitated phase is found in this study, which is granular and has the same crystal structure and lattice parameter as that of the other two β phases. And the granular β......
homogenization condition for the studied alloy is 600 ℃ and 24 h. Key words: Al-Mn alloy; homogenization; property; microstructure; precipitated phase 随着铝质热交换器结构设计方面的不断改进,国内外通过不断研制与开发一系列高强高耐腐蚀性的Al-Mn系合金材料,来满足因厚度... ℃ or the extension of holding time in the range of 12-72 h, but hardness at 620 ℃ is higher than that at 600 ℃. The cast alloy is composed of dendrite segregation and non-equilibrium phase......
and precipitated phase of CaO-Al2O3-MgO-FexO-SiO2 slags HOU Peng-tao1, WANG Li-jun2,3, LIU Shi-yuan2, ZHANG Jian-kun4, CHOU Kuo-chih2,3 (1. School of Metallurgical and Ecological Engineering, University... by the precipitation of the fayalite. Key words: K2O content; viscosity; FactSage software; precipitated phase Foundation item: Project (2014M560046) supported by China Postdoctoral Science Foundation......
of aged CuNiMnFe alloy can reach up 1 130 MPa. Key words: CuNiMnFe alloy; boron; dendrite; modification; precipitated phase ...; (b) Dendrite and primary phase; (c) Precipitated phase 溶质元素在高温时其扩散激活能高,有足够的能量扩散到枝晶间,导致在凝固的过程中溶质元素大量富集在枝晶间,为初生β相在枝晶间的生成创造了条件.另一方面,枝晶杆上的次生β相是过饱和α固溶体发生脱溶的产物,未添加硼元素时,只有少量次生β相,次生γ相从α固溶体中析出；由于硼的存在降低了一部分Mn......
果进行比较,确定椭圆状沉淀相是AlCuMg,棒状沉淀相是MgZn2,胶囊状沉淀相是Al2CuMg. 图5 沉淀相的形貌 Fig. 5 Morphology of precipitated phase 图6 沉淀相的晶格条纹 Fig. 6 Lattice fringe of precipitated phase 同时,通过TEM观测到了接头无析出区..., microhardness and the kinds, morphology of precipitated phase among the joints were analyzed by optical microscope, microvickers hardness tester, X-ray diffractometer (XRD) and the transmission......
Effect of Precipitated Phases on Corrosion of Mg95.8Gd3Zn1Zr0.2Alloy with Long-Period Stacking Ordered StructureXi-Mei Zong1,2,3,Dan Wang1,2,Wei Liu1,2,Kai-Bo Nie1,2,Chun-Xiang Xu1,2,Jin-Shan...:The microstructure of the precipitated phases of Mg95.8Gd3Zn1Zr0.2 alloys with long-period stacking ordered structure before and after heat treatment......
and dislocations disappear. Around the interfaces, fine silicon phases precipitate. ⊙ Key words: Sip/Al composites; silicon phase; configuration evolution; interface; precipitated phase ... phase configuration and Si-Al interface of Sip/Al composites WANG Xiao-feng1, 2, WU Gao-hui2, XIU Zi-yang2, PENG Chao-qun1 (1. School of Materials Science and Engineering, Central South University......
words: Cu-Cr-Zr alloy; as-cast structure; in-situ composite; precipitated phase 1 Introduction Deformation-processed in-situ Cu-Cr fiber- reinforced composites are potential electric materials... alloy contains Cu matrix, Cr dendrite, eutectic Cr , Zr-rich phase, Cr precipitated phase and Cu5Zr intermetallic compound. The Cu5Zr intermetallic compound with large size investigated in this work......
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