| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Joining of Advanced and Specialty Materials XXI
|
| Presentation Title |
Computational Modeling of Weldability Tests for Quantification of Material-Specific Properties Related to Weldability |
| Author(s) |
Boian Alexandrov |
| On-Site Speaker (Planned) |
Boian Alexandrov |
| Abstract Scope |
Various weldability tests have been developed and deployed for evaluation of cracking susceptibility in welds of metallic alloys during fabrication and service. Such tests provide simple qualitative rankings of cracking susceptibility that can be used in materials selection. However, weldability tests cannot accurately replicate all metallurgical and thermo-mechanical phenomena associated with welding processes, and therefore cannot determine specific material properties to be used in weld design and process development.
Computational modeling of weldability tests is introduced as an approach for quantification of materials properties related to weldability. Such properties can be determined using weldability testing to determine cracking threshold condition in parallel with computational modeling of such condition to quantify particular material property related to cracking susceptibility. Examples of quantification of the critical strain for solidification cracking in the Cast Pin Tear Test and the critical hydrogen content for hydrogen assisted cracking in the Implant Test are presented. |