Kane, WM and Krupp, U and Jacobs, T and McMahon, CJ
(2005)
On the mechanism of quench cracking in Rene 95 nickel-based superalloy.
Materials Science and Engineering A, 402 (1-2).
42 - 46.
ISSN 0921-5093
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Abstract
The mechanism of quench cracking in the nickel-based superalloy Rene 95 has been investigated. Rapid cooling of notched tensile bars loaded with fixed grips was used to mimic a quench. Failures occurred by brittle intergranular fracture in air, but by rupture and at higher stress in vacuum. The brittle intergranular fracture in air was recognized as dynamic embrittlement. Nickel-plating of sufficient thickness was found to eliminate cracking when Rene 95 was water-quenched from above the γ′ solvus temperature. © 2005 Elsevier B.V. All rights reserved.
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