GB/T 9451-2005
ActiveDetermination of total or effective thickness of thin surface hardened layers of steel parts
钢件薄表面总硬化层深度或有效硬化层深度的测定
📋 Scope / 适用范围 ai_extracted
本标准规定了钢制零件薄表面总硬化层深度或有效硬化层深度的定义及其测定方法。 本标准适用于表面总硬化层深度或有效硬化层深度小于0.
📚 References & Relations / 引用与关联
normative_reference
GB/T 18449.
normative_reference
GB/T 4340.1-1999
normative_reference
GB/T 7232-1999
normative_reference
GB/T 9450-2005
normative_reference
ISO 2639
📖 Terms & Definitions / 术语和定义 ai_extracted
- 总硬化层深度
- total thickness of hardened layers 从零件表面垂直方向测量到与基体金属间的显微硬度或显微组织没有明显变化的那一硬化层的 距离。
- 有效硬化层深度
- effective thickness of hardened layers 从零件表面垂直方向测量到规定的某种显微组织边界或规定的显微硬度值的硬化层距离。
🔗 Related Standards / 同类标准
GB/T 12603-1990
Classification and designation on metal heat treatment
GB/T 13324-1991
Terminology of heat treatment installation
GB/T 7232-1999
Terminology of metal heat treatment
GB/T 8121-2002
The terminology of technological materials for heattreatment
GB/T 21736-2008
Technical specifications of energy-saving combustion devices for heat treating
GB/T 16924-2008
Quenching and tempering of steel parts
GB/T 16923-2008
Normalizing and annealing of steel parts
GB/T 18177-2008
Gas nitriding of steel parts
Content extracted by AI. Not officially verified.