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of C276 superalloy. Key words: C276 superalloy; hot tension deformation; flow stress; constitutive equation 1 Introduction Hastelloy C276 alloy is a Ni-Cr-Mo wrought alloy that is generally considered... is calculated. Besides, the deformation mechanisms are proposed through the activation energy under different deformation parameters. Finally, constitutive equation of C276 alloy described by Zener......
temperature and strain rate should be necessarily decreased. Key words: ZX115 magnesium alloy; Ca; hot compression; flow curve; constitutive equation 镁及其合金具有优异的综合性能,如低密度,高比强度和刚度,阻尼减震等,已成为最具潜力的工程结构材料之一,且...]. 中国有色金属学报, 2008, 18(11): 1977-1981. WANG Zhong-tang, ZHANG Shi-hong, QI Guang-xia, WANG Fang, LI Yan-juan. Constitutive equation of thermal deformation for AZ31 magnesium alloy[J]. The Chinese......
) fluid was expounded by means of a new rheometer with double driving discs rotating at the same speed in the opposite directions. The constitutive equation of MR fluid was established with theoretical... and theoretical results show that rheological properties and dynamic characteristics of MR fluid can be measured with this double disc rheometer. Key words: magnetorheogical fluid; constitutive equation......
; microstructure evolution; constitutive equation 至今为止铝锂合金已经过3代的发展,第一代(1420,2020等)和第二代(2090,8090等)合金都因存在各自的不足(各向异性严重,热稳定不足以及生产工艺难度大,成本高等)未能推广应用.第三代铝锂合金在前两代的基础上,通过降低Li元素含量,添加Mn和Zr等微量元素,使其不足得到改善而得以推广应用.随着铝锂合金的... 中图分类号:TG146.2 文献标志码:A Flow behavior and constitutive equations of Al-Cu-Li-Mg-Mn-Zn-Ag alloy during isothermal compression......
to the unbowing of there-dimensional network of dislocations. Key words: pure copper; creep; dislocation; anelasticity; constitutive creep equation 1 Introduction It has been known that creep deformation can... and temperature In Figs. 5(a)-(c), the scaling factors, a, b, c and d, obtained from the creep constitutive equations: the power-law equation, Blackburn’s equation and the logarithmic-law equation, respectively......
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evaluation of chip scale package using a modified Coffin-Manson equation [J]. Microelectronics Reliability, 2004, 44(2): 269-274. [4] YANG X J, NASSAR S. Constitutive modeling of time-dependent cyclic...J. Cent. South Univ. Technol. (2009) 16: 0339-0343 DOI: 10.1007/s11771-009-0057-8 Parameter fitting of constitutive model and FEM analysis of solder joint thermal cycle reliability for lead......
Constitutive Relationship and Hot Processing Maps of Mg-Gd-Y-Nb-Zr AlloyZhaohui Zhou,Qichao Fan,Zhihui Xia,Aiguo Hao,Wenhua Yang,Wei Ji,Haiqiao CaoInstitute of Machinery Manufacturing Technology, Chinese Academy of Engineering Physics摘 要:The hot working behavior of Mg-Gd-Y-Nb-Zr alloy was investigated using constitutive model and hot processing maps......
,temperature,and strain rate were evaluated via power-law,hyperbolic sine,and exponential constitutive equations under different strain conditions. An exponential equation was found to be the most...Constitutive behavior and processing maps of low-expansion GH909 superalloyZhi-hao Yao1,2,Shao-cong Wu1,Jian-xin Dong1,Qiu-ying Yu3,Mai-cang Zhang1,Guang-wei Han41. School of Materials Science......
of flow stress increases with increasing the strain rate and decreases with increasing the deformation temperature. Key words: 2E12 aluminum alloy; hot deformation; flow stress; constitutive equation 2×24......
