THE EFFECT OF METALLURGICAL VARIABLES IN SHIPPLATE STEELS ON THE TRANSITION TEMPERATURES IN THE DROP-WEIGHT AND CHARPY V-NOTCH TESTS
Abstract
The effects of composition and ferrite grain size on drop-weight transition temperatures were stdied. To provide an internal check and to permit comparisons with other investigations, parallel studies were made on V-Notch Charpy specimens. The experimental steels covered the following ranges in composition: 0.10/0.32% carbon, 0.30/1.31% manganese, 0.02/0.43% silicon, and nil/0.136% acid soluble aluminum. These ranges were intentionally wider than the limits permitted for ship plate. Although most of the data were obtained on hot-rolled samples, some plates were heat treated in order to cover a wider range in ferrite grain size. The study showed that carbon raises and manganese, silicon, aluminum and finer ferrite grain sizes lower both drop-weight and Charpy transition temperatures. Quantitatively, variations in composition and grain size have a more marked effect on Charpy transition temperatures than on the drop-weight transition temperature. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 03, 1962
- Accession Number
- AD0294827
Entities
People
- F.w. Boulger
- W.r. Hansen
Organizations
- Battelle Memorial Institute