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Work hardening of Duratherm 600 cobalt superalloy using repetitive corrugation and straightening process

Sheikh, H ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.3103/S1067821210010116
  3. Publisher: 2010
  4. Abstract:
  5. In this paper, the effect of repetitive corrugation and straightening (RCS) process on hardness of Duratherm 600 superalloy has been investigated. To do so, the RCS was carried out until 25 cycles using multiple teeth corrugative setup that the rotation of sample with 90° between cycles was utilized. The results show that the increasing of cycle number enhances the value of hardness. Also, the microstructures of samples are an evidence of slipbands formation during RCS showing the applied strain on the material. As a result, the increasing of hardness can be attributed to formation of subgrains, LAGBs and hcp martensitic plates at large strains
  6. Keywords:
  7. Applied strain ; Cycle number ; Large strains ; Martensitic plates ; Repetitive corrugation ; Slip band ; Subgrains ; Work hardening ; Strain ; Strain hardening ; Superalloys ; Hardness ; Alloy ; Cobalt ; Formation mechanism ; Microstructure ; Processing ; Rotation
  8. Source: Russian Journal of Non-Ferrous Metals ; Volume 51, Issue 1 , February , 2010 , Pages 59-61 ; 10678212 (ISSN)
  9. URL: http://link.springer.com/article/10.3103/S1067821210010116