The official standard for ASTM E2109-01 (often found as its current reapproved version, ASTM E2109-01R21) provides standardized test methods for determining the area percentage porosity in thermal sprayed coatings (TSCs). Key Specifications of ASTM E2109-01
Porosity is a critical factor in determining the performance of thermal spray coatings, affecting: astm e2109-01 pdf
. This protocol is essential for industries where material integrity and microstructural precision are critical, such as aerospace, automotive, and metallurgy. Purpose and Scope The official standard for ASTM E2109-01 (often found
| Feature | ASTM E2109-01 | ASTM D3654 (common for tapes) | |--------|----------------|-------------------------------| | Load application | Static shear (constant load) | Static shear (constant load) | | Substrate | Specified stainless steel or customer-defined surface | Stainless steel or specified panel | | Temperature control | Required (often 23°C, 40°C, 70°C) | Optional – ambient unless specified | | Failure criteria | Complete separation of adhesive from substrate or cohesive split | Similar, but E2109 includes more precise measurement of displacement | | Data analysis | Time-to-failure with Weibull or log-normal statistics recommended | Simple average and range | Etching: Porosity is a critical factor in determining
Ask your client for the specific revision listed in their project specification or Quality Management System (QMS). If they wrote "E2109-01," buy that. If they wrote "E2109-01(2019)," buy the reapproved version. Most accreditation bodies accept the reapproved version as equivalent unless the -01 version contains a specific appendix that was removed later.
Full Title: Standard Test Methods for Determining Area Percentage Porosity in Thermal Sprayed Coatings