GB/T 14999.4-1994
Methods of examining micro-structures for heat-resisting superalloys (English Version)
- Standard No.
- GB/T 14999.4-1994
- Language
- Chinese, Available in English version
- Release Date
- 1994
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2013-05
- Replace By
- GB/T 14999.4-2012
- Latest
- GB/T 14999.4-2012
- Scope
- This standard applies to the purity, grain size and band structure test of iron-based and nickel-based superalloy plates and rods.
GB/T 14999.4-1994 history
- 2012 GB/T 14999.4-2012 Test methods for superalloys.Part 4:Determination of characterizing banding grains and primary carbides distribution of superalloy rollings
- 1994 GB/T 14999.4-1994 Methods of examining micro-structures for heat-resisting superalloys
GB/T 14999.4-1994 -All Parts
GB/T 14999.1-2012 Test method for superal loys.Part 1:Verification of longitudinal macro-structures and defect by etch
GB/T 14999.2-2012 Test methods for superalloys.Part 2:Verification of transverse macro-structures and defect by etch
GB/T 14999.3-2012 Test methods for superalloys.Part 3:Verification of longitudinal fracture of bars
GB/T 14999.4-2012 Test methods for superalloys.Part 4:Determination of characterizing banding grains and primary carbides distribution of superalloy rollings
GB/T 14999.5-1994 Photomicrographs and photomacrographs for evaluating of heat-resisting superalloys
GB/T 14999.6-2010 Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings
GB/T 14999.7-2010 Test methods for grain sizes,primary dendrite spacing and microshrinkage of superalloy castings