Simon Manuscript.pdf (677.81 kB)
Download file

Spallation of alpha alumina due to non-uniform creep relaxation

Download (677.81 kB)
conference contribution
posted on 29.09.2021, 13:38 by Harry HayHarry Hay, Bo Yuan, Christopher HarveyChristopher Harvey, Simon WangSimon Wang
A cooling and time rate dependent function is devised first to measure the level of dynamic creep relaxation of thermally grown oxide (TGO) α-Al2O3 on the Fe-Cr-Al alloy substrate during cooling [1,2]. It explains the cooling rate dependent spallation of the alumina scales at room temperature very well and proves that the dynamic creep relaxation is the cause of scale spallation. Then, the work develops a pocket of non-uniform creep relaxation model which gives accurate predictions of spallation radius. The work [3,4] is significantly advanced.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Source

4th International Conference on Advanced Materials and Engineering Applications (ICAMEA 2021)

Version

AM (Accepted Manuscript)

Rights holder

© The Authors

Language

en

Location

School of Machinery and Equipment Engineering, Hebei University of Engineering, Handan, China

Event dates

26th September 2021 - 28th September 2021

Depositor

Dr Christopher Harvey. Deposit date: 28 September 2021