GB/T 31309-2014

Abolished

Calculation of electoron vacancy number in nickel-base superalloys

镍基高温合金电子空位数计算方法

Standard Type
GBT
ICS
77.040.99
CCS
H24
Status
Abolished
Issue Date
2014-12-05
Implementation
2015-09-01
Centralized Committee
中国钢铁工业协会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the calculation method for determining the electron vacancy number in nickel-base superalloys, which is a key parameter for predicting the formation of topologically close-packed (TCP) phases that can embrittle the material. It is applied in the metallurgical industry, specifically during the alloy design and quality control of superalloys used in high-temperature components such as turbine blades and discs in aerospace and power generation. The standard ensures consistent evaluation of phase stability to prevent premature failure under prolonged thermal and mechanical stress.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.