组织配分对2002双相不锈钢点蚀萌生及扩展的影响

雷哲缘, 汪毅聪, 胡骞, 黄峰, 刘静

Effect of Microstructure Distribution on Pitting Initiation and Propagation of 2002 Duplex Stainless Steel

LEI Zheyuan, WANG Yicong, HU Qian, HUANG Feng, LIU Jing

表1 3种2002双相不锈钢试样α和γ两相占比和主要元素分布

Table 1 Proportion of α and γ phases and distribution of main elements in three 2002 duplex stainless steel samples

Sample Solution treatment temperature Phase Volume fraction % Mass fraction / % Cr Mo N 1# --- α 53.3 22.00±0.79 0.35±0.06 0.05 γ 46.7 18.86±0.75 0.21±0.07 0.31 2# 1100 ℃ α 57.4 21.87±0.68 0.32±0.10 0.05 γ 42.6 19.13±0.69 0.31±0.08 0.34 3# 1200 ℃ α 68.4 21.60±0.74 0.29±0.06 0.05 γ 31.6 19.73±0.69 0.35±0.06 0.43