| Webster's Online Dictionary |
| Expressions | Definition | ||
| Heat-affected zone | The heat-affected zone (HAZ) is the area of base material, either a metal or a thermoplastic, which has had its microstructure and properties altered by welding. The heat from the welding process and subsequent re-cooling causes this change in the area surrounding the weld. The extent and magnitude of property change depends primarily on the base material, the weld filler metal, and the amount and concentration of heat input by the welding process. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
| Expressions | Domain | Definition | |
| Heat-affected zone | Metallurgy | The zone within the parent metal of a welded joint in which heating has caused structural changes without melting. Source: European Union. (references) | |
| Heat-affected zone (H\Z) | Aerospace | The region of material affected by the heat of welding or brazing. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
