| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Advances in Ferrous Metallurgy
|
| Presentation Title |
Adapting HSLA-100 to Thick-Section Forgings |
| Author(s) |
Joshua J. Mueller, Virginia K. Euser, Joshem Gibson, Mark Royer |
| On-Site Speaker (Planned) |
Joshua J. Mueller |
| Abstract Scope |
HSLA-100 is a naval steel that was developed to exhibit exceptional combinations of strength and toughness while maintaining good weldability without post-weld heat treatment. Originally developed as a plate steel grade, there is interest in adapting HSLA-100 to thick-section forgings. The work presented here investigates the amenability of HSLA-100 to forgings, and highlights successes and challenges associated with production of high-strength, high-toughness forgings relative to plate. Mechanical property results, including uniaxial tensile and Charpy V-notch, for various heat treatments are presented. Variation in mechanical properties in thick-section forgings are discussed and tied to through-thickness changes in microstructural evolution. Finally, potential alloy modifications are introduced that intend to remedy challenges associated with adapting HSLA-100 to thick-section forgings. Experimental trials suggest that HSLA-100 forgings can meet marginally reduced strength-toughness targets with the original HSLA-100 composition; however, with judicious alloy modifications, thick-section forgings may achieve properties comparable to plate. |