http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Chunxiang Zhang,Hao Xue,Shiping Xing,Junting Luo 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.8
The electric field-assisted (EFA) heat treatment is proposed to solve the problem of excessive grain growth of β phase duringthe heat treatment of ZrTiAlV alloy. The effect of the EFA heat treatment process on the phase transformation and microstructureof the as-forged and severe plastic deformation (SPD) alloys are studied. For the as-forged 47Zr alloy, the pure βphase can be obtained by holding at 700 °C for 5 min. After SPD, the increase in defect concentration in the alloy reducesthe effectiveness of the EFA heat treatment, and required an extension of the holding time to 15 min to obtain a pure β phase. Furthermore, a new mechanism for the transition of needle-like α phase to β phase is proposed. Dislocations in the β-phasematrix shear the needle-like α phase, resulting in the formation of a large number of stacking faults inside it, which are thentransformed into the β phase through atomic plane slippage.