基于多尺度力学实验的氢脆现象的最新研究进展

兰亮云, 孔祥伟, 邱春林, 杜林秀

A Review of Recent Advance on Hydrogen Embrittlement Phenomenon Based on Multiscale Mechanical Experiments

LAN Liangyun, KONG Xiangwei, QIU Chunlin, DU Linxiu

表1 纳米压痕分析有/无氢条件下材料的Pop-in效应[20,89,91,92,94~96,100,102,104]

Table 1 The Pop-in effect of materials with/without hydrogen conditions based on nanoindentation analyses[20,89,91,92,94-96,100,102,104]

Material Load condition Hydrogen free Hydrogen condition Pop-in load Pop-in Hydrogen concentration Pop-in load Pop-in displacement displacement 316 stainless 1000 μN total ~200 μN 4-6 nm* (1) 500 mA·cm-2 for 6 h 650-700 μN 12-20 nm* steel[89] load (2) 10 mA·cm-2 for 6 h 350 μN 5-14 nm* Austenitic 5-500 mN total 144.2 μN 9.8 nm* 1.4% (atomic fraction) 72 μN 11.6 nm* stainless steel[91] load Fe single 1000 μN with 433 μN 53 nm* 0.3 × 10-6 ~150 μN ~7.5 nm and crystal[92] 100 μN/s and 320 μN* 12 nm* Ni single 300 μN with ~220 μN 50 nm* -1000 mV cathodic ~100 μN ~12 nm for crystal[94,95] 50 μN/s potential each pop-in* Cu single 600 μN 330 μN 55 nm* -1000/-1150 mV ~320 μN ~50 nm* crystal[95] cathodic potential Fe-3%Si[20] 1000/2250 μN* 2000 μN 43 nm* -1000 mV cathodic 840 μN ~20 nm* potential Pure Al[96,100] 350 μN ~280 μN 100 nm -1250 mV cathodic ~80 μN 65 nm potential 718 alloy[102] 2500 μN with 1250 μN 17 nm -1200 mV cathodic 940 μN 6 nm 8000 μN/s (101) crystal potential plane TWIP steel[104] 2000 μN with 550 μN 38 nm* -2000 mV cathodic 380 μN 12 nm* 8000 μN/s (111) crystal potential plane