Latest News
News
G6 LEONARDO vs G8 GALILEO: Choosing the Right ONH Analyzer for Your Lab
Every laboratory has different priorities that must be met when investing in an oxygen, nitrogen, and hydrogen (ONH) analyzer. Some focus on routine quality control, while others require greater automation and specialized testing capabilities. Selecting the right ONH system means looking beyond analytical performance to consider factors such as sample throughput, operating costs, maintenance requirements, and future testing needs. The G6 LEONARDO and G8 GALILEO from XRF Scientific each deliver precise inert gas fusion (IGF) analysis, but are designed to support different laboratory workflows and operational objectives.
ONH and the Role of Inert Gas Fusion
Oxygen, nitrogen, and hydrogen have a significant influence on the mechanical properties, corrosion res
...
How Does ONH Analysis Work?
Materials used in industries such as aerospace, automotive, and steel manufacturing often contain small amounts of oxygen, nitrogen, and hydrogen (ONH) within their crystal structure. While these interstitial gases are invisible to the eye, they can significantly affect material performance. ONH analysis measures them by extracting the gases from the sample and analyzing each one separately, providing the accurate compositional data needed for informed manufacturing and quality decisions.
The Science Behind ONH Analysis
Oxygen, nitrogen, and hydrogen exist as interstitial elements, meaning they occupy microscopic spaces within a material’s crystal lattice. Since they are embedded throughout the bulk material, conventional surface analysis cannot accur
...
How a Diffusible Hydrogen Analyzer Can Prevent Cracking in High-Strength Steels
Not every welding defect is visible when fabrication ends. In high-strength steels, diffusible hydrogen can remain trapped within a welded joint and initiate cracking hours or even days later, long after routine inspections have been completed. A diffusible hydrogen analyzer enables manufacturers to detect diffusible hydrogen levels early, verify that welding processes are producing low-hydrogen welds, and decrease the likelihood of expensive failures before components ever reach service.
The Mechanics of Hydrogen Contamination
Most diffusible hydrogen enters steel during welding. Moisture present in welding electrodes, fluxes, shielding gases, or on the surface of steel dissociates under the intense heat of the welding arc to form atomic hydrogen. This hyd
...