Table 1 Chemical compositions of the conventional lightweight steels and the lightweight stainless steels developed in this investigation.
From: A new class of lightweight, stainless steels with ultra-high strength and large ductility
Alloys | Chemical composition, wt% | ||||||
|---|---|---|---|---|---|---|---|
C | Mn | Al | Ni | Cr | Fe | ||
Conventional austenitic lightweight steels (LWS) | LWS1 (Fe–20Mn–12Al–1.5C) | 1.45 | 19.10 | 11.90 | – | – | Bal |
LWS2 (Fe–30Mn–8Al–0.8C) | 0.81 | 28.51 | 7.95 | – | – | Bal | |
LWS3 (Fe–20Mn–8Al–1.1C) | 1.12 | 19.57 | 8.17 | – | – | Bal | |
LWS4 (Fe–25Mn–9.5Al–0.85C) | 0.84 | 24.80 | 9.45 | 5.07 | – | Bal | |
Lightweight stainless steels (LWSS) | LWSS1 (Fe–20Mn–11.5Al–1.5C–5Cr) | 1.43 | 19.99 | 11.47 | – | 4.88 | Bal |
LWSS2 (Fe–30Mn–12Al–1.5C–5Cr) | 1.48 | 29.05 | 12.01 | – | 5.13 | Bal | |
