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assessment; spheroidization; carbides; creep rupture; [全文内容正在添加中] ......
on the experimental stress relaxation curve, the relationship between creep strain rate and stress has been derived. Then, a set of creep constitutive equations has been built and the values of constants arising in the constitutive equations have been determined by fitting the creep strain rate-stress curve. Close agreement between computed results and experimental ones is obtained for stress relaxation data......
treatment regimes on microstructure and creep properties of GH4169G alloyTIAN Su-gui1, WANG Xin1, LIU Chen1, SUN Wen-ru2(1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China;2. Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016, China)Abstract:By means of heat treatment and creep property measurement under different......
45°角晶界承受蠕变损伤的较大剪切应力可使其发生较大几率的蠕变损伤；而加入的元素Hf促进细小粒状相沿晶界的析出,可抑制晶界滑移,提高晶界强度,是合金蠕变断裂后晶界呈现非光滑表面的主要原因. 关键词:DZ125镍基合金；显微组织；蠕变；变形特征；蠕变损伤 中图分类号:TG132.3 文献标志码:A Microstructure and creep..., China; 2. Beijing Institute of Aeronautical Materials, Beijing 100095, China) Abstract: By means of creep-property measurement and microstructure observation, the creep behavior of DZ125 superalloy......
; 文章编号:1672-7207(2019)05-1229-06 Experimental research on nonlinear creep model of crumb rubber asphalt sand LIU Haoxuan1,2, ZENG Guowei1,2, BAI Fan3, WU Liang1, ZHENG Huasheng1 (1. School... model was proposed to study the nonlinear creep recovery behavior of crumb rubber asphalt sand. A series of compressive creep tests were conducted on crumb rubber asphalt sand......
-jin, TIAN Su-gui, DONG Zhi-feng, et al. Creep behavior and damage feature of Re/Ru-containing single crystal nickel-based superalloy at high temperature[J]. The Chinese Journal of Nonferrous Metals...1100,1120,1140 ℃不同温度施加140 MPa测量的蠕变寿命分别为476,241和67 h,各自的蠕变曲线如图1(a)所示.合金在1100 ℃施加140,150,160 MPa不同应力测量的蠕变寿命分别为476,351和177 h,如图1(b)所示. 图1 合金在高温不同条件下测定的蠕变曲线 Fig. 1 Creep curves of alloy under......
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效时间约为12 h时,材料的硬度和强度趋近于峰值；TEM分析表明,合金板材强度和伸长率的差别主要由时效后强化相S′相和S″相的尺寸和分布密度决定；采用线性回归方法获得合金在190 ℃下稳态蠕变速率与实验应力的本构关系.关键词:2524铝合金；蠕变时效成形；力学性能；微观组织；本构关系Creep ageing behavior of 2524 aluminum alloyZHAN Li-hua..., China)Abstract:The creep age forming effects of 2524 aluminum alloy at different stresses and aging times were investigated through tensile performance, Vickers hardness and TEM. The results show......
果证明该蠕变经验模型的正确性.金川矿区斜长角闪岩蠕变实验研究为分析深部巷道该类围岩流变稳定性及支护方案优化等提供有效帮助.关键词:斜长角闪岩；单轴压缩蠕变实验；长期强度；应变速率；蠕变经验模型；回归拟合Creep characteristics of plagioclase hornblende rock under natural and water-saturated conditions...-hornblende rock in Jinchuan deep underground mine uniaxial compression creep test results, after selection typical creep curves, it is found that viscoelastic and viscoplastic deformation are significantly......
coefficient of tunnel considering creep effect TANG Jia1, DENG Zongwei1, 2, JIANG Jianqing1 (1. School of Civil Engineering, Hunan City University, Yiyang 413000, China; 2. School of Civil Engineering... models and the creep effect was considered. On the basis of the complete stress strain curve, the Burgers creep mechanical model was used to simulate the creep deformation of viscoelastic area......
