Dislocation exhaustion and ultra-hardening of nanograined metals by phase transformation at grain boundaries

Strengthening of metals by grain refinement is limited by the inverse Hall-Petch effect. Here, the authors show nanograined metals can be strengthened by exhausting lattice dislocations via triggering of phase transformation at grain boundaries, instead of further grain refinement.

Bibliographic Details

Published in:	Nature Communications
Main Authors:	Shangshu Wu, Zongde Kou, Qingquan Lai, Si Lan, Shyam Swaroop Katnagallu, Horst Hahn, Shabnam Taheriniya, Gerhard Wilde, Herbert Gleiter, Tao Feng
Format:	Article
Language:	English
Published:	Nature Portfolio 2022-09-01
Online Access:	https://doi.org/10.1038/s41467-022-33257-1