论文标题
AGCL诱导的热盐应激腐蚀在钛合金中开裂
AgCl-induced hot salt stress corrosion cracking in a titanium alloy
论文作者
论文摘要
在\ si {500} {\ mega \ pascal}和\ si {380} {\ celsius} {\ si {24} {24} {\ si} {\ si {\ celsius} {24} {\ si} {\ si {\ celsius} {\ si {24} {\ si} {\ si {\ si} {\ si {\ celsius} {24} {\ hour}的暴露。 SEM和STEM-EDX检查FIB截面的水泡和裂纹，表明金属Ag是形成并沿裂纹迁移的。 TEM分析还揭示了\ ce {sno2}和\ ce {al2o3}腐蚀产物混合到\ ce {tio2}中。断裂表面具有跨粒性质，在主要$α$相中具有脆性外观。在裂解裂解的主要$α$晶粒中观察到长，直和非相互作用的位错，具有基础和金字塔痕迹。这与开裂机理的脱位发射视图一致。
The mechanism of AgCl-induced stress corrosion cracking of Ti-6246 was examined at \SI{500}{\mega\pascal} and \SI{380}{\celsius} for \SI{24}{\hour} exposures. SEM and STEM-EDX examination of a FIB-sectioned blister and crack showed that metallic Ag was formed and migrated along the crack. TEM analysis also revealed the presence of \ce{SnO2} and \ce{Al2O3} corrosion products mixed into \ce{TiO2}. The fracture surface has a transgranular nature with a brittle appearance in the primary $α$ phase. Long, straight and non-interacting dislocations were observed in a cleavage-fractured primary $α$ grain, with basal and pyramidal traces. This is consistent with a dislocation emission view of the the cracking mechanism.
