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the morphology of single-phase austenite Ni-based superalloy with some intermetallics along the grain boundaries. Fig. 1 SEM image of Ni48 alloy matrix 3.2 Oxidation kinetics Figure 2 shows... middle oxide layer is confirmed to be Cr2O3, and the innermost layer consists of discontinuous SiO2. Key words: Ni-based superalloy; rare earth element; high temperature oxidation; multi-layered oxides 1......
In-Situ Observation of SiC Bulk Single Crystal Growth by XRD System Hirotaka Yamaguchi1,Shin-ichi Nishizawa1,Tomohisa Kato1,Kazuo Arai1 (1.National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central, 1-1-1, Umezono, Tsukuba, Ibaraki 305-8568, Japan) Abstract:In-situ analysis for SiC bulk single crystal growth was reported using vertical X-ray diffractometer system......
Growth and characterization of Nd:Sr0.95Ba0.05WO4 single crystal GAO Lihong1,CHEN Jianzhong1,LIN Shukun1,SUN Xiaojuan1 (1.College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou... Sr0.95Ba0.05WO4 and Nd: Sr0.95Ba0.05WO4 single crystals belonged to tetragonal system and I41/a space group. Transparent Nd: Sr0.95Ba0.05WO4 single crystal could be obtained along c-axis by Czochralski method......
-based single crystal superalloy at intermediate temperature TIAN Su-gui, XUE Yong-chao, ZENG Zheng, SHU De-long, GUO Zhong-ge, XIE Jun (School of Materials Science and Engineering, Shenyang University..., the creep behavior and deformation mechanism of Re-free nickel-based single crystal superalloy at intermediate temperature were investigated. The results show that the alloy displays a better creep......
Paramagnetic Anisotropy of CdGd2(WO4)4-δ Single Crystal Hou Bihui1,Wang Yali1,Wang Jiyou1,Liu Guoqing1,Sun Guifang2 (1.College of Applied Science, Beijing University of Technology, Beijing 100022, China;2.School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252059, China) Abstract:CdGd2(WO4)4-δ single crystal was grown using the Czochralski''s method......
Chemical Bond Analysis of Single Crystal Growth of Magnesium Oxide Xue Dongfeng1,Zhang Xu1 (1.State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering... of solids and Pauling''s third rule (polyhedral sharing rule) were employed to quantitatively analyze the chemical bonding structure of constituent atoms and single crystal growth. Our analytical results show......
. 图2 6%Re/5%Ru单晶镍基合金在不同条件的蠕变曲线 Fig. 2 Creep curves of 6%Re/5%Ru single crystal nickel-based superalloy under various conditions 单晶镍基合金的瞬间应变发生在高温加载的瞬间,其位错迅速增殖并在基体中滑移,充填在立方γ′相之间.在超高温蠕变期间,随时...0.25 mm.此外,基体通道中运动位错可发生反应,形成的位错网存留于筏状γ/γ′两相界面 [20],如图5中白色箭头所示. 图4 6.0%Re/5.0%Ru单晶镍基合金完全热处理后的组织形貌 Fig. 4 Morphology of 6.0%Re/5.0%Ru single crystal nickel-based superalloy on (001) plane......
application for electric field treatment on the progress of research on superalloy. 2 Experimental The material used for the present research is a Ni-based superalloy, named GH4199. It was fabricated... of nickel-based crystal superalloy by electric field[J]. Acta Metall Sinica, 2005, 18(6): 679-685. [10] CUI Tong, ZHANG Yu-suo, GUO Shi-wen, WANG Lei, YANG Hong-cai. Study of TCP phase precipitating......
feature of single crystal superalloy can be explained based on the corresponding character of γ′ phase. The anomalous mechanical properties of single crystal superalloy are mainly determined... A, PUTATUNDA S K, BARTOSIEWICZ L, HANGAS. Tensile behavior of a new single crystal nickel-based superalloy (CMSX-4) at room and elevated temperatures [J]. J Mater Eng Perf, 1994, 3(5): 664-672. [13......
Effect of substrate cooling on the epitaxial growth of Ni-based single-crystal superalloy fabricated by direct energy depositionJianwen Nie,Chaoyue Chen,Longtao Liu,Xiaodong Wang,Ruixin Zhao,Sansan...">The columnar-to-equiaxed transition(CET) or the formation of stray grains in the laser melting deposition is the least desirable for the repair of single-crystal blades.In this work,the forced water-cooling......