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appear later and DO22 is much later at a higher temperature, the average occupation probabilities of Al and V reduce, and Al changes more than V. Key words: nickel-based alloys; microscopic phase-field simulation; directional coarsening; anisotropic growth; mismatch; diffusion 1 Introduction γ′ (L12) is the main strengthened phase of nickel-based superalloys which have significantly raised operating......
The Strengthening of Cu-15Ni-8Sn Alloy WANG Ming-Pu1,WANG Yan-hui1,HONG Bin1 (1.School of Material Science and Engineering, Central South University, Changsha China) 摘要:The microstructure, property and relation between them of Cu-15Ni-8Sn alloy are studied by means of TEM and the measurement of hardness. The results show that γ '' metastable phase strengthens alloy because of its ordering......
Oxidation Behavior of the Nickel-Based Superalloy DZ125 at 980℃Ye-Bing Hu1,Li Zhang2,Cong-Qian Cheng1,Peng-Tao Zhao2,Guang-Ping Guo2,Jie Zhao11. School of Materials Science and Engineering, Dalian University of Technology2. Beijing Institute of Aeronautical Materials摘 要:The isothermal oxidation behavior of the nickel-based superalloy DZ125......
-particle boundary[J]. Acta Metallurgica Sinica, 1987, 23(2): B90-B94. [2] GAROSSHEN T. Influence of alloy chemistry on carbide precipitation in a nickel base superalloy[J]. Metallurgical and Materials Transactions A, 1986, 17(11): 2075-2077. [3] QIU C, ATTALLAH M, WU X, ANDREWS P. Influence of hot isostatic pressing temperature on microstructure and tensile properties of a nickel-based superalloy powder......
The Technological Improvements of Aluminum Alloy Coloring by Electrolysis LI Nai-jun1 (1.Teachers College, Shenyang University, Shenyang 110015, P. R. China) 摘要:The technological process of coloring golden-tawny on aluminum alloy by electrolysis was improved in this paper. The optimum composition of electrolyte was found, the conditions of deposition and anodic oxidation by electrolysis were......
Microstructural Instability of an Experimental Nickel-Based Single-Crystal SuperalloyBin Yin1,2,Guang Xie1,Xiangwei Jiang1,Shaohua Zhang1,Wei Zheng1,Langhong Lou11. Superalloys Division,Institute... instability with the precipitation of topologically close-packed(TCP) phases of an experimental nickel-based single-crystal superalloy has been investigated. A significant amount of σ phases......
J. Cent. South Univ. (2018) 25: 754-763 DOI: https://doi.org/10.1007/s11771-018-3780-1 Effect of additives on anode passivation in direct electrolysis process of copper–nickel based alloy scraps LI... passivation time. Over this range, glue and thiourea played an adverse effect. The increase of chloride ions concentration led to the increase in passivation time. Key words: copper–nickel based alloy......
corrosion behavior of Al-Ce-Y coatings on DZ125 nickel-based alloy prepared by pack cementation process [J]. Journal of Central South University, 2020, 27: 381-387. DOI: https://doi.org/10... and associated microstructural development in a β-stabilized high Nb-containing γ-TiAl based alloy [J]. Journal of Alloys and Compounds, 2019, 788: 573-585. DOI: 10.1016/ j.jallcom.2019.02.207. [5] LIN H......
AND DISCUSSION 3.1 Microstructures of tested alloy Microstructures in the deposited condition are shown in Fig.2. Based on the AFM and TEM images given in Fig.2, grain size on the surface of vapor...-section can be contributed to the difference in vapor pressure of nickel, chromium and aluminum. Fig.2 Microstructure of as-deposited Ni-Cr-Al alloy Columnar crystals form......
Trans. Nonferrous Met. Soc. China 22(2012) 1594-1598 Roles of Zr and Y in cast microstructure of M951 nickel-based superalloy ZHOU Peng-jie1,2, YU Jin-jiang2, SUN Xiao-feng2, GUAN Heng-rong2, HU... of Sciences, Shenyang 110016, China Received 14 August 2011; accepted 21 November 2011 Abstract: The influence of Zr and Y on the cast microstructure of a nickel-based superalloy was investigated......
