GB/T 22638.8-2016 in English
VALIDTest methods for aluminum and aluminum alloy foils--Part 8: Determination of cube texture content
- Issued on:2016-12-30
- Implemented on:2017-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 22638.8-2016铝箔试验方法 第8部分：立方面织构含量的测定》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
Standard for the determination of cubic texture content in aluminum foil
1. Scope of the standard and application background
This standard is applicable to the determination of cubic texture content in aluminum foil and aluminum alloy foil, mainly using three methods: electron backscatter diffraction method, X-ray diffraction pole figure method and metallographic method. These methods are of great significance in the field of materials science, especially for the application of high-performance aluminum foil.
| Test method | Brief description of principle | Applicable scenarios | Accuracy |
|---|---|---|---|
| Electron backscatter diffraction (EBSD) | Bragg diffraction is performed by inelastic scattered electron beam in scanning electron microscope to analyze Kikuchi pattern to obtain crystal orientation information. | Suitable for arbitration determination with high precision requirements, especially for aluminum foil samples with smooth surface and obvious texture. | ±0.5% |
| X-ray diffraction pole figure method (XRD e) | Using the diffraction characteristics of X-rays, the diffraction intensity distribution of {hkl} crystal planes in space is collected, and the texture content is determined by pole density analysis. | Suitable for large-size samples and batch testing, especially for studying the spatial distribution characteristics of texture. | ±1% |
| Metallographic method | Through electrolytic polishing and chemical etching to treat the sample, observe the changes in grain morphology, and calculate the texture ratio in combination with quantitative analysis software. | Suitable for preliminary evaluation and small batch testing, especially suitable for laboratory research and teaching purposes. | ±2% |
2. Implementation suggestions and technical points
In practical applications, it is recommended to select the appropriate test method according to specific needs:
- For high-precision arbitration determination, electron backscatter diffraction (EBSD) is preferred.
- When studying the spatial distribution of texture, it is recommended to use X-ray diffraction pole figure method (XRD).
- For preliminary laboratory evaluation or teaching purposes, metallographic method can be selected.
3. Background of standard formulation and technological evolution
With the wide application of aluminum foil in packaging, electronics, aerospace and other fields, the requirements for material performance are increasing. As an important factor affecting the mechanical properties and processing characteristics of aluminum foil, the accurate measurement of cubic texture becomes particularly important. This standard is based on many years of research and technical accumulation, ensuring the scientificity and practicality of the test method.
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