Development of Armor Welding Electrodes: Relation of the Composition of Austenitic (20 Cr-10 Ni) Electroded to the Physical and Ballistic Properties of Armor Weldments (OD-36-2)
Abstract
A study was made of the effect of variations in the composition of austenite 20 Cr-10 Ni type electrodes on the properties of restrained armor weldments. Restrained double bevel armor joints were welded with 20-10 electrodes having variation in manganese content of 1.5, 2.0, and 4.3% combined with molybdenum content variations of 0, 1.5, and 3%. Testing included determination of sensitivity to center root bead cracking, interface cracking, as well as X-ray, macro etch and metallographic examinations. Physical and ballistic properties were determined by tensile tests and a special explosion test. High manganese contents combined with the use of some molybdenum are believed to represent the best electrode combination. Ballistic properties could not be related to composition, and no difference was observed for molybdenum added through the electrode coating or through the core wire.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 23, 1943
- Accession Number
- ADB232051
Entities
People
- A. L. Feild
- F. K. Bloom
- G. E. Linnert