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of Technology, Beijing 100124, China)Abstract:The aging behavior of dilute Al-Er-Zr alloy and the coarsening behavior of Al3(Er1-xZrx) precipitate were investigated by micro-hardness measurements, transmission... hardening; coarsening......
produced in the alloy after the thermal cycling: 1) The discontinuous coarsening implies that grain boundary migrations are inclined to occur in the Al-segregation region after the long-term thermal.... Key words: TiAl alloys; thermal cycling; thermal stability; discontinuous coarsening 1 Introduction TiAl alloys containing high content of Nb with a fully lamellar structure have been preliminarily......
and the shape factor decreases, which has no visible effect on the solid fraction of alloys at the solid-liquid equilibrium stage. Simultaneously, the parimary particle size coarsening with holding time obeys the Ostwald ripening mechanism, and adding Al element into Mg-7Zn alloy results in a decrease of coarsening rate of solid particles in semi-solid slurry, consequently, it can obtain the perfect semi......
Coarsening Kinetics of γ’ Precipitates in Dendritic Regions of a Ni3 Al Base AlloyH.B.Motejadded,M.Soltanieh,S.RastegariSchool of Metallurgy and Materials Engineering,Iran University of Science and Technology,Tehran,Iran摘 要:Coarsening behavior of γ’ precipitates in the dendritic regions of a Ni 3 Al base alloy containing chromium,molybdenum,zirconium......
中图分类号:TG166.3 文献标志码:A Coarsening kinetics of grain boundary precipitates in 7055 aluminium alloy DENG Yun-lai1, 2, WAN Li1... and Engineering, Ministry of Education, Central South University, Changsha 410012, China) Abstract: The morphology and coarsening kinetics of grain boundary precipitates (η) in the regression aging......
-chao, et al. Effects of alloying elements on microstructure and coarsening behavior of Co-8.8Al-9.8W superalloys[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(6): 1505-1515. DOI: 10.11817/j.... 合金元素对Co-8.8Al-9.8W 合金强化相粗化行为的影响[D]. 兰州: 兰州理工大学, 2017. LOU De-chao. Alloying elements on strengthening phase coarsening behavior of Co-8.8Al-9.8W superalloy[D]. Lanzhou: Lanzhou University......
, increasing the numbers of CEC passes could produce finer semi-solid mi- crostructure. The coarsening behavior of solid grains in the semi-solid state obeys Ostwald ripening and grain coalescence mechanisms...Microstructure Evolution and Grain Coarsening Behaviour During Partial Remelting of Cyclic Extrusion Compression Formed AZ61 Magnesium AlloyChangpeng WANG,Huasheng MEI,Rongqiang LI,Difan LI,Ling WANG......
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alloy under studied creep conditions. Therefore, the alloys with small size of eutectic Si are not suitably used at 350 °C. Key words: Al-Si-Cu-Ni-Mg alloy; thermal exposure; coarsening; creep behavior 1... exposure provokes spheroidization and coarsening of eutectic Si particles. The ultimate tensile strength of the HPDC alloy after thermal exposure is higher than that of the PMC alloy at room temperature......
temperature,volume fraction,coarsening behavior of Y’ precipitates and the partitioning behavior of alloying elements as well as lattice misfit of Y/Y’ phases influence the creep behavior of Ni-and Co-base superalloys.However,few investigations about the microstructural characteristics and the coarsening behavior of Y’ precipitates were reported in multicomponent novel Co-base superalloys during......