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的有害影响.在10 000 h时,其条件屈服强度总体上仍保持在600 MPa级别,而合金的室温疲劳极限还有所提高. 关键词:TiAl合金；热暴露；相转变；拉伸；疲劳 中图分类号:TG146.4 文献标志码:A Effect of long-term thermal exposure... h exposure at 700 ℃. The outcome indicates that TiAl alloy containing Nb-Hf demonstrates a higher thermal stability than its counterparts containing Nb due to reduced influence of the "oxygen-release......
with different fillers. On the other hand, DUXSONA et al[16-18] reported the evolution of geopolymer during thermal exposure, including thermal shrinkage, crystallization and mechanical strength...J. Cent. South Univ. Technol. (2009) 16: 0881-0886 DOI: 10.1007/s11771-009-0146-08 Thermal-mechanical properties of short carbon fiber reinforced geopolymer matrix composites subjected......
热暴露过程行为示意图 Fig. 5 Schematic diagrams of behaviors of Ta-W coating/titanium alloy system during pure thermal exposure 2.5 Ta-W涂层/钛合金体系纯热暴露行为 综上分析,Ta-W涂层/钛合金体系纯热暴露过程中的行为可用图5示意.不同参数热暴露处理过程中...[J]. Acta Metallurgica et Materialia, 1991, 39(11): 2745-2758. Stability of Ta-W coating/titanium alloy under pure thermal exposure PENG Xiao-min1, DONG Li-jun1, SUN Xiao-gang1, WU An-ru1, XIA......
Effects of deposition parameters on microstructure and thermal conductivity of diamond films deposited by DC arc plasma jet chemical vapor deposition QU Quan-yan(瞿全炎)1, 2, QIU Wan-qi(邱万奇)1, ZENG... deposition technique. The structure of the film was characterized by scanning electronic microcopy(SEM) and laser Raman spectrometry. The thermal conductivity was measured by a photo thermal deflection......
码:A Effects of long-term thermal exposure on fatigue behavior of Ti-44Al-5Nb-1W-1B alloy with varied surface conditions ZHAO Zhen-xing, SUN Hong-liang, HUANG Ze-wen (Key Laboratory of Advanced... specimens is higher than that of shot peening specimens before exposure. The fatigue strengths of the alloys with both surface conditions reduce after long-term thermal exposure......
衡θ相. 关键词:Al-Cu-Mg-Ag合金；欠时效；热暴露；力学性能；显微组织 中图分类号:TG l46 文献标识码:A Effect of thermal exposure on tensile properties of underaged Al-Cu-Mg-Ag alloy ... 410083, China) Abstract: The effects of long term thermal exposure on mechanical properties and microstructures of an underaged Al-Cu-Mg-Ag alloy were investigated by tensile test, transmission electron......
Sun1,Yi-Zhou Zhou11. Institute of Metal Research ,Chinese Academy of Sciences2. Shenyang University of Technology摘 要:The effect of long-term thermal exposure... and transmission electron microscopy, and the phase transformation of the alloy during long-term thermal exposure was analyzed by X-ray diffraction patterns and differential thermal analysis. Results showed......
Trans. Nonferrous Met. Soc. China 23(2013) 3249-3256 Microstructure evolution of laser deposited Ti60A titanium alloy during cyclic thermal exposure A-li ZHANG, Dong LIU, Hai-bo TANG, Hua-ming WANG... 2013 Abstract: Cyclic thermal exposure tests of infrared heating to 800 °C in 120 s followed by compressed air cooling to 150 °C in 60 s were performed for the laser deposited Ti60A......
) continuous coarsening by the reduction in interfacial area; 3) discontinuous coarsening by grain boundary migration. In recent studies [5,6,11], especially in long-term thermal exposure, the first two...-term thermal exposure at 700 °C, which includes three types of decomposition of α2 and γ lamellae. The decomposition of lamellae is driven by the phase equilibria since the ratio of α2/γ in lamellar......
Trans. Nonferrous Met. Soc. China 25(2015) 457-464 Thermal properties of glass-ceramic bonded thermal barrier coating system S. GHOSH Bio-ceramics and Coating Division, CSIR–Central Glass and Ceramic Research Institute, Kolkata 700032, India Received 26 March 2014; accepted 18 August 2014 Abstract: The thermal properties of a thermal barrier coating (TBC) system comprised of BaO–MgO–SiO2 based......
