有效等待时间过程 virtual waiting time process
The size of the precipitation increases at the beginning of aging process and goes to a stable value at last. The volume fraction of the precipitation increases at the beginning and then decreases,at last increases in a smaller rate.
结果表明:合金在单级时效过程中的主要析出相为Ω相和少量的θ′相,随着时效时间的延长,析出相的径向尺寸明显增大,宽度方向变化较小,逐渐演变成为薄片状,析出相尺寸先增大后趋于稳定,其体积分数先增大后减小,最后再逐渐增大,且增大速率降低。
参考来源 - 时效析出过程中Al·2,447,543篇论文数据，部分数据来源于NoteExpress
层状碳化物不是时效过程中的产物。
将微观弹性应变能理论和微观扩散方程相耦合，建立起时效过程微观晶格动力学模型。
The microscopic lattice kinetic model of aging process was build, using the coupling of the theory of microscopic elastic energy and microscopic diffusion equation.
区，使得在随后的时效过程中形成高密度的强化相，减少自然时效的不利影响，提高合金的硬度。
Pre-aging increases the density and volume of precipitates after artificial aging, which decreases the disadvantage of the nature aging and improves the hardness of auto sheets.
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