Coherency and Grain Size Effects on Solidification Crack Growth in Aluminum Welds
Article dans une revue avec comité de lecture
Résumé
A mass-balance model has been evaluated that estimates the critical conditions for sustaining continuous crack growth in the weld mushy zone. With the aid of a strain partition model, the critical local strain rate (across the weld) has been related to the critical grain boundary deformation rate needed for crack growth. In the present work, these two models are applied to aluminum welds to investigate the theoretical effects of several metallurgical factors on solidification cracking susceptibility. Calculations quantify the improved cracking resistance associated with a smaller coherent temperature range, grain refinement, high solid fraction at coherency, and rapid development of strength.
Fichier(s) constituant cette publication
- Nom:
- MSMP_MATEST_Coniglio_2014.pdf
- Taille:
- 8.721Mo
- Format:
- Description:
- Coherency and Grain Size Effects ...
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureSolidification cracking is a weld defect common to certain susceptible alloys rendering many of them unweldable. It forms and grows continuously behind a moving weld pool within the two-phase mushy zone and involves a ...
-
Article dans une revue avec comité de lectureSolidification cracking is a weld defect common to certain susceptible alloys rendering many of them unweldable. It forms and grows continuously behind a moving weld pool within the two-phase mushy zone and involves a ...
-
Effect of weld travel speed on solidification cracking behavior. Part 1: weld metal characteristics Article dans une revue avec comité de lectureSolidification cracking is a weld defect common to certain susceptible alloys rendering many of them unweldable. It forms and grows continuously behind a moving weld pool within the two-phase mushy zone and involves a ...
-
Article dans une revue avec comité de lectureThe sand mold 3D printing technologies enable the manufacturing of molds with great dimensional accuracy. However, the roughness of as-cast components is higher when cast in a 3D printed mold rather than in a traditional ...
-
Article dans une revue avec comité de lectureSPITZ, N.; MEZGHANI, Sabeur;
EL MANSORI, Mohamed;
CONIGLIO, Nicolas;
MONTAGNE, Alex (Elsevier, 2018)
The sticking of the concrete on metallic formworks during building construction generates many concrete wall defects. Several solutions have been proposed, among which surface lubrication and polymeric coatings are commonly ...