管线钢土壤应力腐蚀开裂研究进展及展望
余德远, 刘智勇, 杜翠薇, 黄辉, 林楠

Research Progress and Prospect of Stress Corrosion Cracking of Pipeline Steel in Soil Environments
YU Deyuan, LIU Zhiyong, DU Cuiwei, HUANG Hui, LIN Nan
图2 管线钢中夹杂物及显微组织对SCC微裂纹萌生及扩展的影响[30,32,39]
Fig.2 Influence of inclusions and microstructure in pipeline steel on the initiation and propagation of SCC microcracks: (a) crack nucleates and propagates along the interface between Al-rich inclusions in X70 steel and the substrate, (b) crack propagates along the interface between alumina and titanium oxide inclusions in X100 steel and the substrate, (c) crack propagates along the BF plate in X100 steel Strip propagation, (d) crack propagates near the interface between M/A island and substrate[30,32,39]