@article{202407.0072, doi = {10.20944/preprints202407.0072.v1}, url = {https://doi.org/10.20944/preprints202407.0072.v1}, year = 2024, month = {July}, publisher = {Preprints}, author = {Thomas Lafe Altshuler}, title = {Brittle Fracture of Iron and Steel and the Sharp Upper Yield Point are Caused by Cementite Grain Boundary Walls}, journal = {Preprints} }