Characterization of Retained Austenite in Advanced High-Strength Steel

Table 2

RA types and volume fraction in the three test specimens.

Specimens	Total volume fraction of RA by X-ray measurement	Island-type RA by EBSD measurement	Thin film-type RA by calculation
1% Mn	0.5%	0.44%	0.06%
1.4% Mn	0.9%	0.77%	0.13%
1.7% Mn	3.5%	3.12%	0.38%