第一性原理研究钛合金中的沉淀强化

程坤, 陈树明, 曹烁, 刘建荣, 马英杰, 范群波, 程兴旺, 杨锐, 胡青苗

Precipitation Strengthening in Titanium Alloys from First Principles Investigation

CHENG Kun, CHEN Shuming, CAO Shuo, LIU Jianrong, MA Yingjie, FAN Qunbo, CHENG Xingwang, YANG Rui, HU Qingmiao

表6 不同热处理制度下沉淀强化强度增量Ti55521合金的Δσ计算值及屈服强度实验值(σ0.2) (MPa)

Table 6 Calculated strength increment Δσ induced by precipitation strengthening and experimental yield strength (σ0.2) of Ti55521 alloy after various heat treatments

State Δσ σ0.2 (exp.) TMP 237.8 ± 42.8 980 ± 15 Aged I 161.1 ± 80.3 1080 ± 18 Aged II 364.3 ± 148.3 1200 ± 12