METALLURGICAL QUALITY OF STEELS USED FOR HULL CONSTRUCTION.

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Abstract:

This report discusses some of the pertinent factors, especially banding and homogenization, which influence the susceptibility of HTS hull steel to underbead weld cracking. The use of laboratory heats for evaluating various chemical compositions and deoxidation protices is considered. The specific items covered are as follow 1 The influence of time and temperature upon the homogenization of both average and high chemical composition HTS steels. 2 The effect of various degrees of homogenization upon underbead cracking and tensile properties. 3 The effect of hot reduction upon the response to homogenizing treatments. 4 The demonstraction of the mechanism of banding in HTS hull steels. 5 A study of the underbead cracking characteristics of quenched and drawn HTS having a yield strength above 75,000 p.s.i. 6 A comparison of the underbead cracking characteristics and mechanical properties of laboratory and commercial HTS hull steels. Author

Author(s):
Sims, C. E. ; Banta, H. M. ; Walters, A. L.
Author Organization(s):
BATTELLE MEMORIAL INST COLUMBUS OHIO
Descriptive Note:
Final summary rept.
Supplementary Note:
See also AD-635 149.
Pagination:
0062

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SSC-11
Contract/Grant Number(s):
NObs-31219, NObs-34231
Project Number(s):
SR-87
Monitor Series:
11
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*STEEL, *SHIP PLATES), SHIP HULLS, TENSILE PROPERTIES, FRACTURE(MECHANICS), WELDS, HEAT TREATMENT, MICROSTRUCTURE, NOTCH SENSITIVITY
Field(s)/Group(s):
Properties of Metals and Alloys, Marine Engineering
Report Date:
1947 May 05