Ce₆₉Al₁₀Cu₂₀Co₁ bulk metallic glass (BMG) samples were annealed at different temperatures ranging from sub-T_g to super-T_g. Some of the samples were cooled to room temperature in air to obtain the relaxed ones, while the others were directly quenched in liquid nitrogen. Then the quenched samples were either withdrawn directly from the liquid nitrogen or subjected to cryogenic treatments (CTs) for different time intervals. The glass transition behaviors and heat flow of the samples in different states, including the as-cast, relaxed, quenched and Quenching+CT states, were investigated by using the differential scanning calorimeter (DSC). The work aims to study the tendency of the rejuvenation and relaxation behaviors of MG around the glass transition that were caused by the annealing, quenching and subsequent cryogenic treatments. The results show that the annealing temperature, cooling rate and cryogenic time play key roles in the rejuvenation and relaxation of MG around the glass transition.

CE ₆₉的Al ₁₀铜₂₀钴₁块状金属玻璃（BMG）的样品在不同的温度范围内退火子Ť_克至超Ť_克。一些样品在空气中冷却至室温以获得松弛的样品，而其他样品则在液氮中直接淬灭。然后将淬灭后的样品直接从液氮中取出，或进行不同时间间隔的低温处理（CT）。使用差示扫描量热仪（DSC）研究了样品在不同状态下的玻璃化转变行为和热流，包括铸态，松弛态，淬火态和淬火+ CT态。这项工作旨在研究由于退火，淬火和随后的低温处理引起的玻璃化转变附近的MG复兴和松弛行为的趋势。结果表明，退火温度，