| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Advances in Metallic Coated Advanced Steels
|
| Presentation Title |
Influence of Temperature on the Mechanical Behavior of TRIP1180 Spot Welds with Liquid Metal Embrittlement Cracks |
| Author(s) |
Kayla M. Molnar, Kip O Findley |
| On-Site Speaker (Planned) |
Kayla M. Molnar |
| Abstract Scope |
In this study, cross-tension and coach peel samples of galvanized TRIP1180 were produced with various liquid metal embrittlement crack lengths (350 – 1400 μm). The cracks were characterized as Type B cracks, occurring near the shoulders of the weld. Non-cracked samples were also produced for comparison. Quasi-static testing was conducted from a temperature range of -40°C to 23°C. For cross-tension testing, temperature had minimal influence on the peak load, energy absorption and failure mode. Non-cracked samples in coach peel testing generally had lower peak load and energy absorption with decreasing temperature, and the cracked samples either followed the same trend or the average values were the same across all temperatures. Overall, the mechanical behavior of spot welds with LME cracks relative to specimens without cracks is not influenced by temperature. |