Metal
EN AW-4006 disk, G.H.A. hard-anodized layer (CC BY experimental)
Measured thickness, microhardness and roughness for the G.H.A. anodic layer on exact EN AW-4006 disks.
Properties
Surface
| Property | Value | Unit |
|---|---|---|
| Anodic oxide layer thickness | 56.0 | um |
| Vickers microhardness HV0.01 | 494.0 | HV0.01 |
| Surface roughness Ra | 0.48 | um |
| Surface roughness Rq | 0.65 | um |
| Surface roughness Rz | 4.28 | um |
Units
Condition
- Condition
- G.H.A. hard-anodized and boiling-water sealed EN AW-4006 disk
- Temper
- substrate temper not stated; no wrought temper inferred
- Heat treatment
- G.H.A. hard anodizing; boiling water at 100 degC for 2 min per micrometre of anodic-layer thickness
- Product form
- hard-anodized disk
- Thickness / diameter range
- 75 mm disk diameter x 3 mm substrate thickness
- Test direction
- anodic-layer cross-section for thickness and microhardness; surface for roughness
- Processing route
- EN AW-4006 disk; silver-ion hard anodizing in sulfuric acid; condition-specific sealing
- Temperature range
- The article does not state the temperature during layer thickness, hardness or roughness measurements.
- Notes
- Exact EN AW-4006 substrate identity and measured anodic-layer statistics are retained. The article cites licensed UNI EN 573-3 for nominal substrate chemistry, so that chemistry is excluded. These surface-layer values do not describe untreated bulk-alloy hardness, tensile properties, EN minima or a design allowable; substrate temper and measurement temperature are not stated.
Standards
No material standards linked.
Record status
- Category
- Metal
- Unit system
- Common SI