Fracture of drilling head pipe connection due to quenching of heat affected zone (HAZ)
The drilling head pipe connection is made of quenched and tempered steel 34CrNiMo6. The steel characteristic is high hardenability. Due to unsuitable and untested welding technology the heat affected zone (HAZ) cooling rate after welding surpassed the upper critical cooling rate. During horizontal d...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Croatian Metallurgical Society
2015-10-01
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| Series: | Metalurgija |
| Subjects: | |
| Online Access: | http://hrcak.srce.hr/file/209296 |