STUDIES ON REPAIR WELDING AGE-HARDENABLE NICKEL-BASE ALLOYS

Journal Article · Thu Sep 01 04:00:00 EDT 1960 · Welding J. (N.Y.)

OSTI ID:4151911

Lepkowski, W J; Monroe, R E; Rieppel, P J

Repair welding of two age-hardenable nickel-base alloys, Rene 41 and Astroloy, was studied. Repair welds were made on restrained, aged material by several techniques. Samples were then subjected to thermal cycles simulating jet- engine operation. The experimental studies showed that Rene 41 alloys could be repair welded and subjected to temperatures in the aging range (around 1400 deg F) without failure if the repair welds were given a localized solution treatment at 1950 deg F or were hammer peened at room temperature. One specimen of Astroloy was repair welded and reaged at 1650 deg F without failure. It was necessary to develop techniques for preventing cracking in tbe base metal of Astroloy during the solution and aging heat treatments that followed the original welding operation. Hastelloy ""W"" and Rene 41 filler metals produced less stop- start cracks during the preparation of Rene 41 restrained-type weld specimens than did Hastelloy "X." Hastelloy "X" was the only filler metal used in Astroloy; therefore, no evaluation of fillers used with this alloy was possible. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• NSA Number: NSA-14-022975
• OSTI ID: 4151911
• Journal Information: Welding J. (N.Y.), Journal Name: Welding J. (N.Y.) Vol. Vol: 39
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ENGINEERING AND EQUIPMENT