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| 1 | Influence of Re on the Properties of a NiCoCrAlY Coating Alloy显示文摘MCrAlY can serve as stand-alone overlay coatings or bond coats in thermal barrier coating systems, and its properties play a vital role in determining the performance of these coating systems. In order to further understand the behavior of MCrAlY coatings, several NiCoCrAlY model alloys with different levels of Re (0.3 wt%, 6 wt%, and 9 wt%) were investigated. Microstructural observation showed the addition of Re promoted the precipitation of Cr-rich phases, such as α-Cr and σ. The presence of α-Cr lowered the coecient of thermal expansion (CTE) of the coating alloys, which could reduce the CTE mismatch at the scale-metal interface. The solid solution strengthening effect of Re is responsible for an increase in Rockwell hardness of the coating alloys. But the isothermal oxidation resistance at 1100oC was deteriorated due to the precipitation of brittle α-Cr phase, a phase of inferior oxidation resistance compared with β-NiAl and γ-Ni. | J.J. Liang H. We Y.L. Zhu X.F. Sun Z.Q. Hu M.S. Dargusch X.D. Yao | 2011 | Journal of Materials Science & Technology2011，27，5： | 5 |
| 2 | Measurements of γ/γ' Lattice Misfit and γ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy显示文摘A conventional X-ray diffractometer has been used to determine the γ/γ lattice misfit and γ volume fraction for a Ru-containing nickel-based single crystal superalloy at room temperature.The rocking curve was used to characterize the distribution of subgrains.The diffraction peaks obtained by ω-2θ scan were used to determine the γ/γ lattice misfit and γ volume fraction.A three peaks fitting model was proposed.The peak fitting results are in good agreement with the model.The X-ray diffraction results indicate that the nickel-based single crystal superalloy was not a perfect monocrystalline material,which is comprised of many subgrains;and each subgrain also consists of large numbers of mosaic structures.In addition,two anomalous reflection phenomena were found during the experiment and discussed with respect to their occurrence and impact on the measurement.The experimental results show that the γ/γ lattice misfit and γ volume fraction will be various at the different regions of its dendritic microstructure.The average γ/γ lattice misfit and γ volume fraction of the experimental alloy are approximately-0.2% and 70%,respectively.Furthermore,the γ volume fraction calculated by atom microprobe(AP) data is also basically consistent with the experimental results. | X.P. Tan J.L. Liu X P Song T. Jin X.F. Sun Z.Q. Hu | 2011 | Journal of Materials Science & Technology2011，27，10： | 3 |
| 3 | EFFECT OF VACUUM HEAT TREATMENT ON OXIDATION BEHAVIOR OF SPUTTERED NiCrAlY COATING显示文摘A bond coat for thermal barrier coating (TBC), NiCrAlY coating, is subjected to vac-uum heat treatment in order to remove internal stress before ceramic top coat is de-posited. The effect of vacuum heat treatment on the oxidation behavior of the sputteredNiCrAlY coating has been investigated. The as-sputtered NiCrAlY coating consists ofγ-Ni and β-NiAl phases. After vacuum heat treatment, the sputtered NiCrAlY coatingmainly consists of γ-Ni3Al, β-NiAl, γ-Ni, and trace of α-Al2O3 phases. The isother-mal oxidation of sputtered NiCrAlY coating with and without vacuum heat treatmenthas been performed at 1000C. It is shown that α-Al2O3 formed during vacuum heattreatment acts as nuclei for the formation of α-Al2O3, and the protective α-Al2O3scale is formed more rapidly on the vacuum heat treated NiCrAlY coating than thatformed on the untreated coating. Also the α-Al2O3 scale has a better adherence to thevacuum heat treated NiCrAlY coating. Therefore the vacuum heat treatment improvesthe oxidation resistance of sputtered NiCrAlY coating. | M.H. Li X.F. Sun Z.Y. Zhang H.R. Guan W.Y. Hu Z.Q | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，1： | 2 |
| 4 | Effect of rapid solidification on the microstructure and refining performance of an Al–Si–P master alloy显示文摘 | M. Zuo X.F. Liu Q.Q. Sun K. Jiang | 2009 | Journal of Materials Processing Tech2009，，15： | 2 |
| 5 | Oxidation Behavior of a Single-Crystal Ni-Base Superalloy in Air. I: At 800 and 900°C显示文摘 | M.H. Li X.F. Sun J.G. Li Z.Y. Zhang T. Jin H.R. Guan Z.Q. Hu | 2003 | Oxidation of Metals (-)2003，，5： | 1 |
| 6 | Microwave absorption properties of the core/shell-type iron and nickel nanoparticles显示文摘 | B. Lu X.L. Dong H. Huang X.F. Zhang X.G. Zhu J.P. Lei J.P. Sun | 2007 | Journal of Magnetism and Magnetic Materials2007，，6： | 1 |
| 7 | The chemical modification of lignins with succinic anhydride in aqueous systems显示文摘 | B. Xiao X.F. Sun RunCang Sun | 2001 | Polymer Degradation and Stability2001，，2： | 1 |
| 8 | Orientation and temperature dependence of yielding and deformation behavior of a nickel-base single crystal superalloy显示文摘 | L.N. Wang Y. Liu J.J. Yu Y. Xu X.F. Sun H.R. Guan Z.Q. Hu | 2009 | Materials Science & Engineering A2009，，1： | 1 |
| 9 | Effect of transient liquid phase (TLP) bonding on the ductility of a Ni-base single crystal superalloy in a stress rupture test显示文摘 | J.D. Liu T. Jin N.R. Zhao Z.H. Wang X.F. Sun H.R. Guan Z.Q. Hu | 2006 | Materials Characterization2006，，1： | 1 |
| 10 | Study on the interaction of a palladium complex with DNA显示文摘 | Gao E.J Yin H.X Zhu M.C Sun Y.G. Gu X.F. Wu Q. Ren L.X | | 0，，06： | 1 |
| 11 | The chemical modification of lignins with succinic anhydride in aqueous systems显示文摘 | B. Xiao X.F. Sun RunCang Sun | 2001 | Polymer Degradation and Stability2001，，： | 1 |
| 12 | Topologically close-packed phase precipitation in a nickel-base superalloy during thermal exposure显示文摘 | J.X. Yang Q. Zheng X.F. Sun H.R. Guan Z.Q. Hu | 2007 | Materials Science & Engineering A2007，，1： | 1 |
| 13 | Microstructure and formation mechanism of titanium dioxide nanotubes显示文摘 | Y.Q. Wang G.Q. Hu X.F. Duan H.L. Sun Q.K. Xue | 2002 | Chemical Physics Letters2002，，5： | 1 |
| 14 | Clinical and biological significance of angiogenesis and lymphangiogenesis in colorectal cancer显示文摘 | J. Gao A. Knutsen G. Arbman J. Carstensen B. Fr?nlund X.F. Sun | 2008 | Digestive and Liver Disease2008，，2： | 1 |
| 15 | Oxidation Behavior of a Single-Crystal Ni-Base Superalloy in Air. I: At 800 and 900°C显示文摘 | M.H. Li X.F. Sun J.G. Li Z.Y. Zhang T. Jin H.R. Guan Z.Q. Hu | 2003 | Oxidation of Metals (-)2003，，5： | 1 |
| 16 | Formation of carbides and their effects on stress rupture of a Ni-base single crystal superalloy显示文摘 | L.R. Liu T. Jin N.R. Zhao X.F. Sun H.R. Guan Z.Q. Hu | 2003 | Materials Science & Engineering A2003，，1： | 1 |
| 17 | On interdiffusion in the multicomponent β-NiAl phase显示文摘 | H. Wei H.Y. Zhang G.C. Hou X.F. Sun M.S. Dargusch X. Yao Z.Q. Hu | 2009 | Journal of Alloys and Compounds2009，，1： | 1 |
| 18 | Oxidation Behavior of a Single-Crystal Ni-Base Superalloy in Air—II: At 1000, 1100, and 1150°C显示文摘 | M.H. Li X.F. Sun T. Jin H.R. Guan Z.Q. Hu | 2003 | Oxidation of Metals (-)2003，，1： | 1 |
| 19 | Effect of rapid solidification on the microstructure and refining performance of an Al–Si–P master alloy显示文摘 | M. Zuo X.F. Liu Q.Q. Sun K. Jiang | 2009 | Journal of Materials Processing Tech2009，，15： | 1 |
| 20 | BEHAVIOR OF SHORT FATIGUE CRACKS AT BLUNT NOTCHES IN A MEDIUM CARBON STEEL显示文摘The behavior of part-through and through short cmcks in single edge blunt notched specimens of a medium carbon steel was investigated by a replication method. It is found that the fatigue failure of these notched specitnensis caused mainly by the growth of short surface cracks originating from the sudece of notch root. More than 70% of the fatigue lofe is spent in the regimes in which short surface cracks initiate and propagate as part-through cracks before joining up to form a single through-thickness cmck. The effect of original crack profile which is forsned through the coalescence of multiple part-through cracks is the main reason causing the 'anomalous' propagation behavior of the through-thickness cruck in its early stage. | Wu, Z.X. Sun, X.F. | 1997 | Acta Metallurgica Sinica(English Letters)1997，10，5： | 0 |
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