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that the scattering patterns are composed of several concentric circles at the beginning of aging process, which is replaced by the butterfly-wings scattering patterns with the increase of aging time... with aging time indicates the good coarsening resistance of the precipitates. The evolution of integrated intensity is consistent with the classical two-step precipitation process.关键词:......
and in the course of long-term aging at 700℃. The carbides maintain good thermal stability with the aging time up to 5008 h. The growth rate of gamma prime precipitates is relatively high in the early... slightly at the initial stage of aging, but it decreases with the prolonged time. It mainly depends on the size of gamma prime. In comparison with Nimonic关键词:......
show that the infrared absorption peak intensities of C-O, C-H, and C=O in aged samples decrease gradually with increasing aging time. The damage degree of surface and internal of aged samples... one along with the increasing time of aging treatment, suggesting that the hydrolysis of amorphous regions of PLA is more preferential than its crystalline regions. Because of the influence of crystal......
delayed the peak aging time compared to one-step aging and kept the same levels of hardness,electrical conductivity,ultimate tensile strength(UTS),yield strength(YS) and elongation as those of the T6 temper...Microstructure and properties characteristic during interrupted multi-step aging in Al-Cu-Mg-Ag-Zr alloyZHU Baohong,XIONG Baiqing,ZHANG Yong’an,ZHANG Jianbo,WANG Feng,and LI Zhihui State Key......
Province, Nanchang University摘 要:The effects of aging time and temperature on the formation and growth behavior of interfacial intermetallic compound(IMC... Sn5. The thickness of the interfacial IMC in Sn-16 Sb/Cu is linearly against the square root of aging time, which indicates that the growth of IMC is mainly controlled by diffusion between Cu and Sn......
. Effects of aging time and stress-strain cycle on superelasticity of Ti-Ni-Zr shape memory alloy[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(6): 1536-1544. DOI: 10.11817/j...,在600 ℃时效时,时效时间不宜过长,否则会损坏合金的强度和塑性. 图1 时效时间对Ti-50.8Ni-0.1Zr合金拉伸曲线,抗拉强度Rm和断后伸长率A的影响 Fig. 1 Effect of aging time on tensile curves (a), tensile strength Rm and percentage elongation A (b......
of precipitation and strengthening is the T1 phase.The aging temperature and aging time have a significant effect on the amount and distribution of the T1 phase.The proper artificial single-aging treatment...).With increasing the aging time to overaged,the T1 phase coarsens,and the PFZ widens,leading to an increase in the susceptibility to intergranular corrosion and exfoliation corrosion.关键词:......
alloy at 420 °C could be completed within 12 h, while this process in the Ce-containing alloy required more time. In subsequent aging process at 175 °C, Ce obviously delayed the aging process of AZ91D...Study on solid solution and aging process of AZ91D magnesium alloy with cerium郭锋,李鹏飞,高霞,许娟College of Materials Science and Engineering, Inner Mongolia University of Technology摘 要:
alloy at 420 °C could be completed within 12 h, while this process in the Ce-containing alloy required more time. In subsequent aging process at 175 °C, Ce obviously delayed the aging process of AZ91D...Study on solid solution and aging process of AZ91D magnesium alloy with cerium郭锋,李鹏飞,高霞,许娟College of Materials Science and Engineering, Inner Mongolia University of Technology摘 要: