ABSTRACT Thermal desorption spectroscopy (TDS) was performed on ultra-low carbon (ULC) steel with various degrees of hydrogen-induced damage and deformation-induced defects. First, the extent to which hydrogen-induced damage manifests itself in TDS measurements was evaluated. Application of multiple test conditions on cold deformed ULC steel with and without the presence of hydrogen-induced damage showed that such damage did not appear as a hydrogen signal on the TDS spectra. Second, interesting features observed on the TDS spectra of cold deformed ULC steel were further investigated by assessing the TDS spectra of recrystallised and annealed ULC steel. As such, the four peaks in the TDS spectra were linked to microstructural features: interstitial lattice positions, grain boundaries, dislocations and microvoids.

中文翻译：

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氢致损伤和形变缺陷的热解吸光谱评价

摘要 对具有不同程度氢致损伤和变形诱导缺陷的超低碳 (ULC) 钢进行了热解吸光谱 (TDS)。首先，评估了氢致损伤在 TDS 测量中表现出来的程度。对存在和不存在氢致损伤的冷变形 ULC 钢应用多种测试条件表明，这种损伤在 TDS 光谱上没有显示为氢信号。其次，通过评估再结晶和退火 ULC 钢的 TDS 光谱，进一步研究了在冷变形 ULC 钢的 TDS 光谱上观察到的有趣特征。因此，TDS 光谱中的四个峰与微观结构特征相关：间隙晶格位置、晶界、位错和微孔洞。