Title

Properties Of Yttrium And The Rare Earth Metals, Effect Of Minor Additions To Niobium-Base Alloy On Elevated Temperature Oxidation Resistance

Date

1962

Index Abstract

Contrails only

Photo Quality

Incomplete

Report Number

WADD TR 61-123 Part 2

Creator

Kirkpatrick, Craig G.

Corporate Author

Research Chemicals

Laboratory

Directorate of Materials and Processes

Date Issued

1962-06-01

Extent

143

Identifier

AD0284425

AD0284425

Access Rights

OTS

Distribution Classification

1

Contract

AF 33(616)-6829

DoD Task

735103

DTIC Record Exists

Yes

Distribution Change Authority Correspondence

None

Report Availability

Full text available

DoD Project

7351 - Metallic Materials

Abstract

Approximately 180 compositions in 19 niobium based alloy types were prepared for study. Atmospheric corrosion tests were completed for 9 series of alloys. Improved corrosion resistance is indicated for a niobium alloy containing 7% titanium, 20% tungsten, and 3% molybdenum when rare earth metals are added. Possible improvement, on the addition of rare earths, is also suggested for a niobium alloy containing 11.3% titanium and 7.9% molybdenum. Metallurgical investigations of two alloy series failed to indicate correlation between metal interface movement or microhardness values with corrosion resistance as established by weight gain measurements.

Distribution Conflict

No

Special Scanning Requirements

None

Date Modified

Scanned by request 9/5/2017, National Commission of Atomic Energy, Argentina (Government Agency - International)

Subject

Corrosion Resistant Alloys

Electrodes

Niobium Alloys

Rare Earth Elements

Yttrium

Additives

Antioxidants

Atmospheres

Brittleness

Cerium

Corrosion

Dysprosium

High Temperature

Mechanical Properties

Molybdenum Alloys

Oxidation

Scandium

Titanium Alloys

Tungsten Alloys

Publisher

Wright-Patterson Air Force Base, OH : Directorate of Materials and Processes, Aeronautical Systems Division, Air Force Systems Command

Provenance

Lockheed Martin Missiles & Fire Control

Type

report

Format

1 online resource