GB/T 4340.1
ActiveMetallic materials—Vickers hardness test—Part 1: Test method
金属材料 维氏硬度试验 第1部分: 试验方法
📋 Scope / 适用范围 ai_extracted
本标准规定了内燃机激光淬火铸铁气缸套的技术要求、检验规则与检验方法,标志、包装、运输和 贮存。 本标准适用于气缸直径小于或等于200 nun的往复式内燃机激光淬火铸铁气缸套(以下简称气缸套) o
📚 References & Relations / 引用与关联
normative_reference
GB/7
normative_reference
ISO 6507-1
normative_reference
ISO 780
📖 Terms & Definitions / 术语和定义 ai_extracted
- 激光淬火laser
- hardening 采用高功率激光束为能源,以极快速度加热工件表面,并以自冷硬化为主的淬火工艺。 3. 2 相变硬化区hardened zone of phase change 气缸套在激光辐照下发生组织变化,其组成相与普通淬火所获得的相相似且硬度得到提高的区域 3. 3 热影响区 heat affected zone 受激光辐照影响,在相变硬化区周围组织发生转变的区域。它既不同于相变硬化区,又不同于未发 生转变的基体 3.
🔗 Related Standards / 同类标准
GB/Z 38434-2019
Metallic materials—Guide to test pieces preparation for mechanical testing
GB/Z 40387-2021
Metallic materials—Principles and designs for multiaxial fatigue testing
GB/T 1814-1979
Inspection method for steel work fractures
GB/T 3771-1983
Conversion of hardness and strength for copper alloys
GB/T 4197-1984
Method for measuring the average grain size of sintered bar and rod of tungsten molybdenum and alloys
GB/T 4196-1984
Method for testing the density of tungsten and molybdenum bars
GB/T 4195-1984
Method for measuring the distribution of the powder size of tungsten and molybdenum method by the balance for the fall of the particles
GB/T 4194-1984
Creep testing,high temperature treatment and metallographic examination of the tungsten wires
Content extracted by AI. Not officially verified.