J Sun, Y Liu, Y Zhu, F Lian, H Liu, T Jiang, S Guo… - Scientific …, 2017 - ncbi.nlm.nih.gov
High-carbon martensite steels (with C> 0.5 wt.%) are very hard but at the same time as brittle
as glass in as-quenched or low-temperature-tempered state. Such extreme brittleness …