Accession Number:

AD0611188

Title:

PROPERTIES OF X7006, AND X7039 ALUMINUM ALLOY WELDMENTS.

Descriptive Note:

Final technical rept.,

Corporate Author:

LOCKHEED MISSILES AND SPACE CO SUNNYVALE CALIF

Personal Author(s):

Report Date:

1964-02-01

Pagination or Media Count:

43.0

Abstract:

This report presents the results of studies conducted to determine the fusion welding characteristics and the mechanical properties of the X7002, X7006, and X7039 aluminum alloy sheet and plate weldments. Welding was performed with the semi-automatic gas-tungsten arc process using single-pass, DCSP, square-butt techniques. The MRD 705, X5080, and X5039 filler compositions were used to weld the X7002, X7006, and X7039 alloys, respectively. Static tensile properties of base-metal control specimens and weld specimens representing various weldheat-treat sequences, thicknesses, and test temperatures are given. In addition, the effects of natural-aging on room temperature properties are presented for as-welded plus 2, 6,12, and 16 weeks natural-aging reference points. The effects of prior critical cold-work on grain growth and room temperature -T6 properties of X7002 are presented for 4, 8, 10, 12, and 15 percent tensile prestraining. Discussions of the welding characteristics of the various alloys and intergranular, heat-affect zone ruptures of sub-zero X7002 tensile specimens are included also.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE