This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Difference in cooling speed ratios by shape. ja en Quenching solidification difference of the cooling rates according to the location relative values plane surface protruding edge reentrant edge vertice Source Japanese Association for Heat Treatment Reference Guide th ed publisher fr Trempe solidification