Notched C-ring, self-loading
Per Annexure 2: a self-loaded, notched C-ring specimen is used to expose and monitor embrittlement response.
Overview
Detect hydrogen-induced loss of ductility
The hydrogen embrittlement test evaluates susceptibility of plating/coating processes to embrittlement and can also assess performance under service environments likely to be encountered.
ISO/IEC 17025:2017 accredited practices and reporting.
Method
Notched C-ring with incremental step loading
Incremental step loading
Stepwise increases detect the onset of subcritical crack growth; the threshold stress reflects residual hydrogen in the specimen.
Quantified susceptibility
Threshold stress provides a quantitative measure to judge process durability and risk.
Key factors
What governs embrittlement
Susceptibility
- Microstructure
- Physical properties
- Mechanical properties
- Surface conditions
Intrinsic properties influence hydrogen uptake and cracking.
Applied stress
- Steady stress
- Load cycling
Stress state drives subcritical crack growth.
Service conditions
- Pressure
- Temperature
- Purity
Exposure environment affects hydrogen generation and embrittlement rate.
Benefits
Why this test matters
Ensure the reliability and durability of coatings and plating processes with advanced hydrogen embrittlement testing—designed to safeguard against potential failures in demanding service environments.
Get in touch
Talk to an expert
Share process, material, and service environment. We’ll confirm specimen setup, step-load plan, and reporting.