Abstract
IzfP’s 3MA system is a system widely used for evaluating properties of automotive parts formed with PHS (Press Hardened Steels). However, from the satisfying original situation with uncoated steel, the performance of the 3MA has degraded when parts began to be produced with Al-Si coated PHS. After a brief description of the inter-diffusion layer which appears during the thermal cycle of PHS part forming at the steel/coating interface, this paper focuses on its impact on the 3MA measurements. Discussions are supported by measurements on samples as well as a simple modelling of the impact of this diffusional layer on the 3MA outputs.
How to Cite:
Meilland, P. ., Grigorieva, R. . & Drillet, P. ., (2019) “Basic considerations in the use of the 3MA system for the assessment of Al-Si coated press hardened steels”, Review of Progress in Quantitative Nondestructive Evaluation .
Downloads:
Download PDF