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| 1 | Rare earth effect of yttrium on formation and property of Cr_2O_3 oxide film formed on Co-Cr binary alloy显示文摘Co-40Cr 合金和它的钇的等温的氧化动力学植入离子的样品被热严肃的分析(TGA ) 在空中在 1000 ° C 学习。扫描电子显微镜学(SEM ) 被用来检验 Cr 2 O 3 氧化物电影在氧化以后的形态学。第二等的离子团光谱(SIMS ) 方法被用来检验 Cr 2 O 3 电影。声学的排放(AE ) 方法在裂开和氧化物电影的 spalling 在氧化和随后的 air-cooling 阶段期间在两件样品上形成了的 situto 监视器被使用。模仿电影破裂进程的理论模型被建议准时两个都分析声学的排放光谱域并且在 AE 事件上数字领域。钇离子实现能显著地减少 Co-40Cr 的等温的氧化率并且改善,这被发现击碎反并且 implanation 的反裂片性质能显著地减少 Co-40Cr 的等温的氧化率并且改进 Cr 2 O 3 氧化物电影。为改进的原因主要是植入的钇能减少 Cr 2 O 3 氧化物,增加氧化物电影,和显著还原剂的高温度粘性 Cr 2 O 3 Co-40Cr 界面的缺点。 | JIN Huiming FELIX A. Congrado AROYAVE M. Hayara | 2006 | Progress in Natural Science:Materials International2006，16，1： | 6 |
| 2 | A phase-field study on the oxidation behavior of Ni considering heat conduction显示文摘Phase-field modeling approach has been used to study the oxidation behavior of pure Ni when considering heat conduction. In this calculation, the dependence of the coefficient of the Cahn–Hilliard equation Lc on the temperature T was considered. To this end, high-temperature oxidation experiments and phase-field modeling for pure Ni were performed in air under atmospheric pressure at 600,700, and 800?C. The oxidation rate was measured by thermogravimetry and Lc at these temperatures was determined via interactive algorithm. With the Lc-T relationship constructed, oxidation behavior of Ni when considering heat conduction was investigated. The influence of temperature boundaries on the oxidation degree, oxide film thickness, and specific weight gain were discussed. The phase-field modeling approach proposed in this study will give some highlights of the oxidation resistance analysis and cooling measures design of thermal protection materials. | Chao Wang Shigang Ai Daining Fang | 2016 | Acta Mechanica Sinica2016，32，5： | 2 |
| 3 | Influence of Lanthanum Ion-Implantation on Adhesive Property of Oxide Film Formed on Co-40Cr Alloy显示文摘The isothermal and cyclic oxidizing kinetics of Co-40Cr alloy and its lanthanum ion-implanted samples were studied at 1 000 ℃ in air by thermal gravimetric analysis(TGA).Scanning electron microscopy(SEM)was used to examine the Cr2O3 oxide film's morphology after oxidation.Secondary ion mass spectrum(SIMS)method was used to examine the binding energy change of chromium caused by La-doping and its influence on the formation of Cr2O3 film.Acoustic emission(AE)method was used in situ to monitor the cracking and spalling of oxide films during oxidizing and subsequent air-cooling stages.Laser Raman spectrum was used to examine the stress changes within oxide films.A theoretical model was proposed relating to the film fracture process and was used to analyze the AE spectrum both on time domain and AE-event number domain.It was found that lanthanum implantation remarkably reduced the isothermal oxidizing rate of Co-40Cr and improved the anti-cracking and anti-spalling properties of Cr2O3 oxide film.The reasons for the improvement were mainly that the implanted lanthanum reduced the grain size and internal stress of Cr2O3 oxide,increased the high temperature plasticity of oxide film,and remarkably reduced the number and size of Cr2O3/Co-40Cr interfacial defects. | JIN Hui-ming ZHANG Lin-nan LIU Xiao-jun | 2008 | Journal of Iron and Steel Research(International)2008，15，1： | 1 |
| 4 | 离子注钇对Co-40Cr合金氧化行为及氧化膜/基体界面性能的影响研究显示文摘用热重分析对Co-40Cr合金及其离子注钇样品在1 000℃时的恒温氧化及循环氧化动力学行为进行了研究。用扫描电镜对样品表面Cr2O3氧化膜形貌进行了观测。用声发射方法对不同样品表面氧化膜在恒温及随后空冷过程中的开裂与剥落进行实时监测。根据相应的氧化膜开裂模型,对声发射信号在时域和数域上的分布情况进行了分析。结果表明,离子注钇降低了Co-40Cr合金的恒温氧化速率,并显著提高了合金表面Cr2O3氧化膜的抗开裂和抗剥落性能,主要原因是钇细化了合金表面Cr2O3氧化膜的晶粒、提高了氧化膜的高温塑性和蠕变能力,并且显著降低了Cr2O3/Co-40Cr界面缺陷的数量和大小。 | 胡建书 | 2005 | 理化检验(物理分册)2005，41，12： | 0 |
| 5 | Influence of Yttrium Ion-implantation on Oxidation Kinetics of Co-40Cr Alloy and Property of Oxide/Substrate Interface显示文摘The isothermal and cyclic oxidizing kinetics of Co-40Cr alloy and its yttrium ion-implanted samples were studied at 1000℃in air by thermal-gravity analysis(TGA).Scanning electronic microscopy(SEM) was used to examine the Cr 2 O 3 oxide film’s morphology after oxidation.Secondary ion mass spectroscopy(SIMS) method was used to examine the binding energy change of chromium caused by yttrium doping.Acoustic emission(AE)method was used in situ to monitor the cracking and spalling of oxide films formed on both samples during oxidizing and subsequent air-cooling stages.It is found that yttrium implantation remarkably reduces the isothermal oxidizing rate of Co-40Cr and improves the anti-cracking and anti-spalling properties of Cr 2 O 3 oxide film.The reasons for the improvements are mainly that implanted yttrium reduces the grain size of Cr 2 O 3 oxide,increases the high temperature plasticity of oxide film,and remarkably reduces the number and size of Cr 2 O 3 /Co-40Cr interfacial defects. | 靳惠明 FELIX Congrado AROYAVE Hayara | 2007 | Journal of Wuhan University of Technology(Materials Science)2007，22，2： | 0 |
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