Joining Of Molybdenum

Item

Title
Joining Of Molybdenum
Date
1954
Index Abstract
Coming Soon
Photo Quality
Incomplete
Report Number
WADC TR 54-17
Creator
Platte, W. N.
Corporate Author
Westinghouse Electric Corporation
Laboratory
Materials Laboratory
Extent
108
PB Number
PB128527
NTRL Accession Number
AD029379
Identifier
AD0029379
Access Rights
Notice(s)
Distribution Classification
1
Contract
AF18(600)-114
DoD Project
None Given
DoD Task
Nione Given
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
ADAL ltr
Distribution Change Action Date
10/7/2005
Distribution Conflict
Fix
Abstract
By the use of a closed chamber and a continuous flow of gas through this chamber a controllable welding atmosphere has been provided for experimental work. The atmosphere may be varied from 100% argon, 99.95% pure, to 100% 0(2), N(2), or any combination of these or other gases. The chamber provide a fresh gas shield in an atmosphere of the same composition as the shield. Using the controlled atmosphere chamber, welds in carbon deoxidized arc cast molybdenum are shown to be subject to hot short cracking when the oxygen content in the argon atmosphere around the arc exceeds 0.2%. The ductility of these welds was drastically reduced by the presence of more than 0.05% oxygen in the welding atmosphere. Oxygen in sintered molybdenum is shown to produce porosity and hot short cracking. However, crack and porosity free welds have been produced by using deoxidizing agents in sintered molybdenum.
Report Availability
Full text available by request
Date Issued
1954-08
Provenance
Bearcat
Type
report