Cracks are the most important factor in the welding quality and can be located at different areas after the welding process. The main problem is that, in most cases, the cracked area is the weakest section in the welded parts and it is the point of stress concentration. Cracks are affected by three main factors: the thermal history of the welded parts; the chemical composition of the welded parts; and the conditions of the welding process. This type of crack can be avoided by slowing the cooling rate. In some cases, the joint can be pre-heated to minimize the heat impact of the welding process.
|Title of host publication||Weld Cracking in Ferrous Alloys|
|Place of Publication||Cambridge England|
|Publisher||Woodhead Publishing Limited|
|Number of pages||26|
|Publication status||Published - 2009|