| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Advancements in Steel Structural Refinement
|
| Presentation Title |
Phase Transformation Behavior of Fe-10wt.% Ni Steel Weld Metal |
| Author(s) |
Daniel Bechetti, Jennifer Semple, Matthew Sinfield |
| On-Site Speaker (Planned) |
Daniel Bechetti |
| Abstract Scope |
Researchers at the Naval Surface Warfare Center, Carderock Division and Carpenter Technology Corporation have collaborated to develop a high-strength steel solid wire welding electrode based on the Fe-10wt.% Ni metallurgical system (dubbed ‘10Ni steel’). As development of the 10Ni steel welding consumable progressed, a more granular understanding of its on-heating and on-cooling transformation behavior was needed to explain microstructural and mechanical property observations and to provide data for increasing the accuracy of computational models. This presentation reports the results of Gleeble-based dilatometry testing of 10Ni steel gas metal arc (GMA) weld metal and use of the resulting data to explain effects of chemistry and heat affected zone (HAZ) peak temperature on martensite transformation behavior, effects of heating rate on recrystallization, the development of residual stresses during weld fabrication, and the importance of recrystallization to mechanical properties. |