A STUDY OF THE STRAIN-AGE CRACK SENSITIVITY OF RENE' 41
Final rept. no. 1, 1 May 1965-15 Aug 1966
GENERAL ELECTRIC CO CINCINNATI OH MATERIALS DEVELOPMENT LAB OPERATION
Pagination or Media Count:
A program of research work directed toward the study of the strain- age crack sensitivity of Rene 41 was conducted and is described. The primary objectives of this study were To perfect a screening test which could be used to evaluate and quantitatively measure factors which contribute to strain-age cracking in complex nickel-base superalloys and To subsequently use this information as a means of improving material quality and welding and heat treating process techniques and procedures which would minimize or eliminate the occurrence of strain-age cracking in fabricated components. Of the various factors studied, low carbon 0.04 - 0.02 and electron beam welding were documented as being the most capable of decreasing the sensitivity of Rene 41 to strain-age cracking. Further studies are planned under a continuation of this contract.
- Properties of Metals and Alloys