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Detail of GB/T 3246.1-2012
Introduction of GB/T 3246.1-2012
Contents of GB/T 3246.1-2012
1 Scope
This part of GB/T 3246 specifies test solution, specimen preparation, etching, anodizing membrane preparation, structure inspection, determination of grain size and test report for microstructure inspection of aluminum and aluminum alloy ingot casting (or ingot blank), wrought aluminum and aluminum alloys plate, strip, foil, tube, bar, profile, line and forging (hereafter referred to as processed products).
This part is applicable to microstructure inspection of aluminum and aluminum alloy ingot casting (or ingot blank) and processed products.
2 Test Solution
2.1 Nitric acid solution (1+4).
2.2 Perchloric acid ethanol solution (1+9).
2.3 Nitric acid solution (1+2.5)~nitric acid solution (1+1).
2.4 No.1 Etchant: hydrofluoric acid solution (1+200).
2.5 No.2 Etchant: hydrofluoric acid solution (1+1).
2.6 No.3 Etchant: phosphoric acid solution (1+9).
2.7 No.4 Etchant: sulfuric acid solution (1+9) ~sulfuric acid solution (2+8).
2.8 No.5 Etchant: nitric acid solution (1+3).
2.9 No. 6 Etchant: uniform mixture of 2:3:5:190 hydrofluoric acid (ρ 1.15 g/mL): hydrochloric acid (ρ 1.19 g/mL): nitric acid (ρ 1.40 g/mL): water.
2.10 No. 7 Etchant: uniform mixture of 2:1:1:76 hydrofluoric acid (ρ 1.15 g/mL): hydrochloric acid (ρ 1.19 g/mL): nitric acid (ρ 1.40 g/mL): water.
2.11 No.8 Etchant: uniform mixture of 2:3:5:250 hydrofluoric acid (ρ 1.15 g/mL): hydrochloric acid (ρ 1.19 g/mL): nitric acid (ρ 1.40 g/mL): water.
2.12 Nitric acid solution (1+19) ~nitric acid solution (1+3).
2.13 Sulfuric acid - phosphoric acid solution: uniform mixture of 38:43:19 sulfuric acid (ρ 1.84 g/mL): phosphoric acid (ρ 1.70 g/mL): water.
2.14 Fluoboric acid solution (25 g/L).
Foreword i
1 Scope
2 Test Solution
3 Specimen Preparation
4 Specimen Etching
5 Anodizing Membrane Preparation
6 Structure Inspection
7 Determination of Grain Size
8 Test Report
GB/T 3246.1-2012 is referred in:
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GB/T 3246.1-2012 Inspection method for structure of wrought aluminum and aluminum alloy products Part 1 : Inspection method for microstructure (English Version)
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Detail of GB/T 3246.1-2012
Standard No. English Name Chinese Name Chinese Classification Professional Classification ICS Classification Issued by Issued on Implemented on Status Superseded by Superseded on Abolished on Superseding Language File Format
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Introduction of GB/T 3246.1-2012
1 Scope
This part of GB/T 3246 specifies test solution, specimen preparation, etching, anodizing membrane preparation, structure inspection, determination of grain size and test report for microstructure inspection of aluminum and aluminum alloy ingot casting (or ingot blank), wrought aluminum and aluminum alloys plate, strip, foil, tube, bar, profile, line and forging (hereafter referred to as processed products).
This part is applicable to microstructure inspection of aluminum and aluminum alloy ingot casting (or ingot blank) and processed products.
2 Test Solution
2.1 Nitric acid solution (1+4).
2.2 Perchloric acid ethanol solution (1+9).
2.3 Nitric acid solution (1+2.5)~nitric acid solution (1+1).
2.4 No.1 Etchant: hydrofluoric acid solution (1+200).
2.5 No.2 Etchant: hydrofluoric acid solution (1+1).
2.6 No.3 Etchant: phosphoric acid solution (1+9).
2.7 No.4 Etchant: sulfuric acid solution (1+9) ~sulfuric acid solution (2+8).
2.8 No.5 Etchant: nitric acid solution (1+3).
2.9 No. 6 Etchant: uniform mixture of 2:3:5:190 hydrofluoric acid (ρ 1.15 g/mL): hydrochloric acid (ρ 1.19 g/mL): nitric acid (ρ 1.40 g/mL): water.
2.10 No. 7 Etchant: uniform mixture of 2:1:1:76 hydrofluoric acid (ρ 1.15 g/mL): hydrochloric acid (ρ 1.19 g/mL): nitric acid (ρ 1.40 g/mL): water.
2.11 No.8 Etchant: uniform mixture of 2:3:5:250 hydrofluoric acid (ρ 1.15 g/mL): hydrochloric acid (ρ 1.19 g/mL): nitric acid (ρ 1.40 g/mL): water.
2.12 Nitric acid solution (1+19) ~nitric acid solution (1+3).
2.13 Sulfuric acid - phosphoric acid solution: uniform mixture of 38:43:19 sulfuric acid (ρ 1.84 g/mL): phosphoric acid (ρ 1.70 g/mL): water.
2.14 Fluoboric acid solution (25 g/L).
Contents of GB/T 3246.1-2012
Foreword i
1 Scope
2 Test Solution
3 Specimen Preparation
4 Specimen Etching
5 Anodizing Membrane Preparation
6 Structure Inspection
7 Determination of Grain Size
8 Test Report
