JB/T 12616-2016Inspection methods for fracture toughness of cemented carbide tool substrate materials (English PDF)
硬质合金刀具基体材料断裂韧性检测方法
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
January 15, 2016
Implementation date
June 1, 2016
Scope
JB/T 12616-2016 is the English-translated version of 硬质合金刀具基体材料断裂韧性检测方法.
JB/T 12616-2016 is a recommended Chinese machinery industry standard that sets out an inspection method for the fracture toughness of the base material of cemented carbide tools.
It describes how that fracture toughness is measured at room temperature on the matrix material of a cemented carbide tool. The method applies to the determination of fracture toughness on solid carbide tool substrates.
It quotes GB/T 3489, GB/T 4340.2 and GB/T 7997. Its Chinese classification is J41 and its international classification 25.100.01, and it was issued by the Ministry of Industry and Information Technology.
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Document preview — JB/T 12616-2016
National Standard of the People's Republic of China
- ICS
- 25.100.01
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 1 Scope
- 2 Normative references
- 3 Symbols
- 4 Principle of the method
- 5 Preparation of the specimen
- 6 Testing equipment
- 6.1 Vickers hardness tester
- 6.2 Device for measuring the crack length
- 7 Testing method
- 8 Data processing
- 8.1 Vickers hardness
- 8.2 Fracture toughness
- 8.3 Uncertainty of the test results
- Figure 1 Diagram of the indentation for the fracture toughness
What this standard covers
This standard specifies the method of detecting the fracture toughness of the matrix material of the cemented carbide tool at room temperature. This standard is applicable to the detection of fracture toughness of solid carbide tool base.
Document data
International classification (ICS): 25.100.01.
Chinese classification (CCS): J41.
Estimated length of the Chinese original: 6,629 words.
Standards quoted by this document
GB/T 3489; GB/T 4340.2; GB/T 7997
3 Symbols
4 Principle of the method
5 Preparation of the specimen
6 Testing equipment
7 Testing method
8 Data processing
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
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Related Standards
GB/T 3489-2015 — Hard metals -- Metallographic determination of porosity and uncombined carbon
GB/T 4340.2-2025 — Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines
GB/T 7997-2014 — Hardmetals—Vickers hardness test
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JB/T 12616-2016
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