56. Grain boundary strengthening and Hall-Petch Relation

[@wowineedyou]

thank you! this video is really helpful, i wrote my final task about Hall-Petch relationship based on your video and got an excellent mark!

[@oriolatobi1132]

Thank you

[@nirajchawake]

Dear Oriola Thanks and happy to help you.

[@mangeram2731]

Thanks sir

[@nirajchawake]

All the best