Title

Procedure For Evaluation Of Coated Refractory Alloys

Date

1964

Index Abstract

Not Available

Photo Quality

Complete

Report Number

ML TDR 64-70

Creator

Levinstein, M. A.

Marble, J. D.

Corporate Author

General Electric Co Cincinnati Ohio

Laboratory

AF Materials Laboratory

Extent

204

Identifier

AD0604738

Access Rights

OTS

Distribution Classification

1

Contract

AF 33(616)-8154

DoD Project

None Given

DoD Task

None Given

DTIC Record Exists

No

Distribution Change Authority Correspondence

None

Distribution Conflict

No

Abstract

Procedures for the evaluation of coated molybdenum and columbium alloys were investigated. A simple corrugated specimen was designed to determine the applicability of current coatings to a fabricated structure. Coated specimens were oxidation tested at 2500F up to 10 hours, and sectioned for metallographic examination and hardness determination. Dynamic oxidation tests were conducted using a gas-fired flame tunnel and a plasma test stand. Effects of the coatings and elevated temperature exposure on basis metal properties were established by combined stress, fatigue, and tensile tests. Coatings from six sources were investigated on the program. Based on the results obtained recommendations are made for the standardization of the applicability specimen and combined stress testing along with other mechanical tests for the evaluation of coated refractory metals.

Report Availability

Full text available

Date Issued

1964-06

Provenance

Lockheed Martin Missiles & Fire Control

Type

report

Format

1 online resource