Table 2 An overview table with microstructural details for all heat treatment conditions. A minimum of 100 precipitates per steel were considered for the precipitate size and spacing measurements
From: Effect of titanium and vanadium nano-carbide size on hydrogen embrittlement of ferritic steels
HT | Hardness | Grain area [μ m2] | Precipitate size [nm] | Precipitate | |||||
|---|---|---|---|---|---|---|---|---|---|
HV2 | Low | Avg. | High | Low | Avg. | High | spacing [nm] | ||
TiC | SN | 272 ± 3.1 | 0.1 | 3.8 | 160 | 2.8 | 8.6 | 290 | 44 ± 23 |
LN | 238 ± 1.6 | 0.1 | 5.0 | 192 | 5.7 | 30.3 | 235 | 50 ± 31 | |
Semi-coherent nano-carbides | |||||||||
Homogeneously distributed incoherent > 100 nm carbides | 3.0 ± 2.0 μ m | ||||||||
VC | SN | 241 ± 1.2 | 0.1 | 12.5 | 223 | 3.8 | 9.9 | 522 | 24 ± 24 |
LN | 230 ± 0.7 | 0.1 | 24.9 | 231 | 2.5 | 17.6 | 349 | 49 ± 34 | |
Coherent nano-carbides, some semi-coherent in VCLN | |||||||||
Few incoherent > 100 nm carbides | |||||||||
