STUDY OF A HETEROGENEOUS 18 Ni (300) MARAGING STEEL.

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Abstract:

The Swiss Federal Aircraft Establishment and The Fatigue Institute of Columbia University are cooperating in a long-range research program on the fatigue performance of high strength steels in aircraft structures. The alloyed steels involved in the program fall into three groups according to carbon content, i.e. steels with medium 0.3-0.4, relative low 0.1-0.2 and very low max. 0.03 carbon content, the last group consisting of maraging steels. The greatest expectation and interest was focused on the 18 Ni 300 grade maraging steel because of its toughness and weldability coupled with the highest yield strength. Author

Author(s):
Ronay, Maria
Author Organization(s):
COLUMBIA UNIV NEW YORK DEPT OF CIVIL ENGINEERING AND ENGINEERING MECHANICS
Descriptive Note:
Technical rept.,
Pagination:
0077

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-64
Contract/Grant Number(s):
Nonr-266(91)
Project Number(s):
NR-064-470
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
(*AIRFRAMES, MARAGING STEELS), (*MARAGING STEELS, FATIGUE(MECHANICS)), NICKEL ALLOYS, MICROSTRUCTURE, COBALT ALLOYS, MOLYBDENUM ALLOYS, MARTENSITE, TRANSFORMATIONS
Field(s)/Group(s):
Aircraft, Properties of Metals and Alloys, Solid State Physics
Keyword(s):
STEEL 18NI
Report Date:
1969 May 01