超高强高韧化钢的研究进展和展望
罗海文(
),沈国慧
),沈国慧
Progress and Perspective of Ultra-High Strength Steels Having High Toughness
LUO Haiwen(),SHEN Guohui
),SHEN Guohui
图3. 渗碳20CrMnMoAl钢经不同温度等温淬火并保温不同时间后表层的TEM像[
Fig.3. TEM images of the surface layers of carburized 20CrMnMoAl steel austempered at 220 ℃ for 32 h (a) and 250 ℃ for 20 h (b)[
