@incollection{Yang18, author = {Dengke Yang and Jiangting Wang and Huimin Yang and Peter Hodgson}, title = {Improving Contact Load-Bearing Resistance of Ultrafine- Grained Materials Through Multilayering and Grading}, booktitle = {Contact and Fracture Mechanics}, publisher = {IntechOpen}, address = {Rijeka}, year = {2018}, editor = {Pranav H. Darji and Veera P. Darji}, chapter = {5}, doi = {10.5772/intechopen.72197}, url = {https://doi.org/10.5772/intechopen.72197} }