Effects of Microstructure, Composition, and Strength on the Nil Ductility Transition (NDT) Temperature of HY-80 Steel

reportActive / Technical Report | Accession Number: AD0737640 | Open PDF

Abstract:

Steel from 22 heats of low-carbon Ni-Cr-Mo steel, HY-80 ASTM a543-65, and MIL-S-16216G Ships was heat treated to study the effects on the drop weight nil ductility transition NDT temperature of 1 commercial variation in composition and inclusion content, 2 variation in microstructure such as prior austenitic grain size and the relative amount of isothermally produced ferrite or bainite in a tempered martensitic matrix, and 3 the observed variation in strength obtained after a one-hour 1150 deg F temper followed by water quench to prevent embrittlement while cooling from the tempering temperature.

Author(s):
Salive, Marcel L.
Author Organization(s):
DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
Descriptive Note:
Final rept.
Pagination:
0118

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited., Availability: Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NSRDC-3722
Project Number(s):
SF35.422.212
Monitor Series:
NAVSHIPS
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4_Logistics; JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_6.4.1_Secure Information Exchange; JCA_1.2.7_Experimentation; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_1.2.5_Lessons Learned; JCA_6.4_Information Assurance; JCA_6_Net Centric
Modernization Areas:
Fully Networked C3
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*STEEL, MICROSTRUCTURE, TENSILE PROPERTIES, GRAIN SIZE, TRANSITION TEMPERATURE, DUCTILITY
Field(s)/Group(s):
Properties of Metals and Alloys
Keyword(s):
STEEL HY 80
Report Date:
1971 Jan 01