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| 1 | Effects of temperature and rare earth content on oxidation resistance of Ni-based superalloy | Xiu SONG Lei WANG Yang LIU Hui-ping MA | 2011 | Progress in Natural Science:Materials International2011，21，3： | 11 |
| 2 | Microstructure and thermal cycling behavior of nanostructured yttria partially stabilized zirconia (YSZ) thermal barrier coatings显示文摘Nanostructured yttria partially stabilized zirconia(YSZ) coatings were prepared by atmospheric plasma spraying(APS) using the conglomeration made by zirconia nanoparticle as the raw materials.The measurement methods,which consisted of scanning electron microscopy(SEM),transmission electron microscopy(TEM) and thermal cycling behavior,were used to character the morphology,composition and thermal oxidation behavior of the powder and the coatings.From the results,it was shown that the YSZ coating was the laminar structure,and the elements distribution in the bond and top coat were well-proportioned.The YSZ coatings were composed of fine grains with size ranging from 30 to 110 nm.The laminar layers with columnar grains were surrounded with unmelted parts of the nanostructured powder and some equiaxed grains.In the as-sprayed nanostructured zirconia coatings,there existed pores that were less than 1 μm.The cracks were observed on some of the crystal border.The cyclic oxidation experiment showed that the nanostructured coating had longer thermal cycling lifetime to exhibit the promising thermal cyclic oxidation resistance.The failure of the nanostructured TBC was similar to the failure of conventional APS TBC. | 孙杰 张丽丽 赵丹 | 2010 | Journal of Rare Earths2010，28，S1： | 8 |
| 3 | Effects of surface modification on isothermal oxidation behavior of HVOF-sprayed NiCrA1Y coatings | Li-yong NI,Zi-long WU,Chun-gen ZHOU Key Laboratory of Aerospace Materials and Performance(Ministry of Education), Department of Materials Science and Engineering,Beihang University,Beijing 100191,China | 2011 | Progress in Natural Science:Materials International2011，21，2： | 4 |
| 4 | Microstructure and oxidation resistance of SiC–MoSi_2 multi-phase coating for SiC coated C/C composites显示文摘In order to improve the anti-oxidation of C/C composites, a SiC–MoSi2multi-phase coating for SiC coated carbon/carbon composites(C/C)was prepared by low pressure chemical vapor deposition(LPCVD) using methyltrichlorosilane(MTS) as precursor, combined with slurry painting from MoSi2 powder. The phase composition and morphology were analyzed by scanning electron microscope(SEM) and X-ray diffraction(XRD) methods, and the deposition mechanism was discussed. The isothermal oxidation and thermal shock resistance were investigated in a furnace containing air environment at 1500 1C. The results show that the as-prepared SiC–MoSi2coating consists of MoSi2 particles as a dispersing phase and CVD–SiC as a continuous phase. The weight loss of the coated samples is 1.51% after oxidation at 1500 1C for 90 h, and 4.79% after 30 thermal cycles between 1500 1C and room temperature. The penetrable cracks and cavities in the coating served as the diffusion channel of oxygen, resulted in the oxidation of C/C composites, and led to the weight loss in oxidation. | Zibo He Hejun Li Xiaohong Shi Qiangang Fu Heng Wu | 2014 | Progress in Natural Science:Materials International2014，24，3： | 2 |
| 5 | Influences of Yttrium on Adhesion of Oxide Scale of Fe-Cr-Al Alloy显示文摘The 1100 ℃ isothermal oxidation behavior of Fe 23Cr 5Al alloy modified by yttrium addition was studied by means of thermogravimetric analysis, scanning electron microscopy and energy dispersive X ray analysis. Yttrium was added to this alloy in the forms of metallic addition, yttrium oxide and ion implant. Cracking and spalling occurred on the convoluted scale formed on Y free alloy and exposed the substrate. A flat dense scale without spallation was formed on the yttrium alloying addition or yttrium oxide dispersion alloy. The scale adhesion was also improved by 1×10 17 Y +/cm 2 implantation. The results indicate the convoluted morphology of the scale on Fe 23Cr 5Al 0 21Ti alloy is related to the growth mechanism of the alumina scale, and the spallation of the scale is related to sulfur segregation at the scale/alloy interface. The main reason that the adhesion of alumina scale is improved by yttrium addition lies in the following. Yttrium is liable to form a stable yttrium sulfide with sulfur in the alloy and prevent sulfur interface from segregation. Another reason is that the growth mechanism of alumina scale is changed by yttrium addition. | 辛丽 李美栓 周龙江 王福会 李铁藩 | 2001 | Journal of Rare Earths2001，19，2： | 2 |
| 6 | Flame Pyrolysis Spraying of Alumina-Yttria Ceramic Coating显示文摘Fig.1Schematicdiagramofthetestequipment(1)compresedair;(2)ethanolsolution;(3)flowmeter;(4)presuregauge;(5)spraynozle;(6)stain... | 李正伟 何业东 齐慧滨 朱日彰 | 1997 | Journal of Rare Earths1997，15，3： | 2 |
| 7 | STUDY ON HIGH TEMPERATURE PERFORMANCES OF MCrAlX COATINGS DEPOSITED BY MULTI-ARC ION PLATING显示文摘NCoCrAlSiYHf and CoNiCrAlTaY coatings which belong to protective Al 2O 3 scale forming type were deposited by multi arc ion plating technique . The effect of deposition process parameters on qualities of the coatings was discussed. The high temperature oxidation performances isothermal oxidation with 950℃ / 500h and 1100℃ / 100h were studied. And also, the hot corrosion performances at 700℃ and 800℃, with molten mixed salt composed of 75%wt Na 2SO 4 and 25%wt NaCl were investigated. Then the high temperature protection decaying mechanisms were proposed. | J. Zhang, J.B. Li, Q.Heng and X.H.Zhang Shenyang University,Shenyang 110044,China L.Q.Qi LiMing Aeroengine Manufacfruing Corperation, Shenyang 110043,China | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，5： | 2 |
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