- Testing
- Morphology Observation
- Microstructure Analysis
- Surface Element Analysis
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- Component Analysis
- Mechanical property test
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Carburizing/Nitriding/Hardening Layer Depth Measurement
Evaluation of Non-metallic Inclusions | Macroscopic Metallographic Analysis |
Metal Average Grain Size Evaluation | X-ray Diffraction(XRD) |
Microcosmic Metallographic Analysis | Carburizing/Nitriding/Hardening Layer |
Purposes:
To check the component's the penetration depth and organizational changes after surface hardening or carburizing, nitriding treatment.
Applications:
Surface treatment on steel by carburizing, nitriding, decarbonization, carbonitriding, induction hardening steel.
Tested Flow:
Sampling→Cleaning→Inlaying→Grinding→Polishing→Etching→Observeing
Reference Standard:
ISO 3887-2003 Steel, Determination of depth of decarburization
GB/T 224-2008 Determination of depth of decarburization of steels
QC/T 29018-1991 Metallographic examination of automobile carbon and nitrogen co permeation gear
ASTM E1077-2001(2005) Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens
ISO 2639-2002 Steels—Determination and verification of the depth of carburized and hardened cases
GB/T 11354-2005 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts
GB/T 9451-2005 Determination of total or effective thickness of thin surface hardened layers of steel parts
GB/T 5617-2005 Determination of effective depth of hardening after induction or flame hardening of steel
GB/T 9450-2005 Steels—Determination and verification of the depth of carburized and hardened cases
GB/T 9095-2008 (ISO 4507-2000) Sintered ferrous materials,carburized or carbonitrided —Determination and verification of case-harding depth
Classic Photos:
The depth of nitriding layer | The depth of carburized layer |
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