ASTM-E963 2017
$35.75
E963-95(2017) Standard Practice for Electrolytic Extraction of Phases from Ni and Ni-Fe Base Superalloys Using a Hydrochloric-Methanol Electrolyte (Withdrawn 2018)
| Published By | Publication Date | Number of Pages |
| ASTM | 2017 | 4 |
ASTM E963-95-Reapproved2017
Withdrawn Standard: Standard Practice for Electrolytic Extraction of Phases from Ni and Ni-Fe Base Superalloys Using a Hydrochloric-Methanol Electrolyte (Withdrawn 2018)
ASTM E963
Scope
1.1 This practice covers a procedure for the isolation of carbides, borides, TCP (topologically close-packed), and GCP (geometrically close-packed) phases (Note 1) in nickel and nickel-iron base gamma prime strengthened alloys. Contamination of the extracted residue by coarse matrix (gamma) or gamma prime particles, or both, reflects the condition of the alloy rather than the techniques mentioned in this procedure.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (See 4.3.2.1 and 5.1.1.)
Note 1: Ni3 Ti (eta phase) has been found to be soluble in the electrolyte for some alloys.
FIG. 1 Schematic Diagram of Extraction Cell
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Keywords
borides; carbides; electrolytic extraction; Gamma prime; GCP phases; superalloys; TCP phases;
ICS Code
ICS Number Code 77.120.40 (Nickel, chromium and their alloys)
DOI: 10.1520/E0963-95R17
