I want to know Hall Petch Constants for AISI 4140 Steel?

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Ola Adel Qasim

https://web.wpi.edu/Pubs/E-project/Available/E-project-042211-104204/unrestricted/MQP_-_Grain_Growth_Kinetics_in_Steels.pdf

https://web.wpi.edu/Pubs/E-project/Available/E-project-042508-223025/unrestricted/MQP_Grain_Growth.pdf

http://www.imim.pl/files/archiwum/Vol2B_2015/41.pdf

Sadeem Fadhil

Dear all

There is a new work that tries to combine both the Hall-Petch and its inverse in one model through presenting a multiscale model that enables description of both the Hall-Petch relation and its inverse in one equation without the need of prior knowledge of the grain size distribution, for more details, please see the following link:

https://www.researchgate.net/publication/324507369_A_new_multiscale_model_to_describe_a_modified_Hall-Petch_relation_at_different_scales_for_Nano_and_micro_materials