细晶FH40船用低温钢在海水-海冰中耦合失效行为研究

孙士斌, 高浩, 常雪婷, 王东胜

Failure Behavior of Fine-grained FH40 Marine Low-temperature Steel in Conditions of Coupling Effect of Seawater-sea Ice

SUN Shibin, GAO Hao, CHANG Xueting, WANG Dongsheng

表1 2种FH40钢样在不同温度下模拟海水中浸泡1200 h后的失重与腐蚀速率

Table 1 Mass losses and corrosion rates of A1 and A2 after 1200 h immersion in simulated seawater at different temperatures

Sample Mass before experiment / g Mass after experiment / g Mass loss / g Corrosion rate / mm·a-1 A1 (20 oC) 1.1678 1.1580 0.0098 3.86 × 10-3 1.1754 1.1662 0.0092 3.62 × 10-3 1.1549 1.1445 0.0104 4.10 × 10-3 A2 (20 oC) 1.1725 1.1646 0.0079 3.11 × 10-3 1.1569 1.1494 0.0075 2.95 × 10-3 1.1594 1.1510 0.0084 3.30 × 10-3 A1 (0 oC) 1.1550 1.1480 0.0070 2.76 × 10-3 1.1733 1.1657 0.0076 2.99 × 10-3 1.1562 1.1501 0.0061 2.40 × 10-3 A2 (0 oC) 1.1578 1.1527 0.0051 2.11 × 10-3 1.1743 1.1688 0.0055 2.16 × 10-3 1.1625 1.1577 0.0048 1.89 × 10-3