Title of article
On the mechanism of quench cracking in Rene 95 nickel-based superalloy
Author/Authors
Kane، نويسنده , , W.M. and Krupp، نويسنده , , U. and Jacobs، نويسنده , , T. and McMahon، نويسنده , , C.J.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
5
From page
42
To page
46
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.
Keywords
Quench cracking , Dynamic embrittlement , Nickel plating , Rene 95
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2005
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2148478
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