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AS 1733-1976
[Current]Methods for the determination of grain size in metals
In separate sections covers general procedures for determining grain size in metals and alloys by estimation of grain size using the comparison method and by calculation of grain size number using the intercept and planimetric methods, specific procedures for austenitic grain size in steels by a range of micrographic methods, and specific procedures for metals and alloys consisting principally of a single phase. Appendices provide explanatory notes on specifying austenitic grain size limits for steel, list etching reagents, and show the standard grain size charts for untwinned grains (flat etch), twinned grain (flat etch), and heavily twinned grains (contrast etch).
Published: 01/05/1976
Pages: 22
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Table of contents
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PREFACE
1 SCOPE AND APPLICATION
1.1 SCOPE
1.2 APPLICATION
2 GENERAL PROCEDURES FOR METHODS OF GRAIN SIZE DETERMINATION
2.1 SCOPE OF SECTION
2.2 GRAIN SIZE NUMBER
2.3 ESTIMATION OF GRAIN SIZE
2.3.1 General
2.3.2 Accuracy of Equipment
2.4 COMPARISON METHOD
2.4.1 Method
2.4.2 Alternative Magnification
2.5 PLANIMETRIC METHOD
2.6 INTERCEPT METHOD
3 DETERMINATION OF AUSTENITE GRAIN SIZE IN STEELS
3.1 SCOPE OF SECTION
3.2 MICROGRAPHIC METHODS
3.2.1 Selection of Method
3.2.2 McQuaid-Ehn (Carburization) Method
3.2.2.1 Application
3.2.2.2 Heat treatment procedure
3.2.2.3 Etching
3.2.3 Pro-eutectoid Ferrite Method
3.2.3.1 Application
3.2.3.2 Heat treatment procedure
3.2.3.3 Etching
3.2.4 Martensitic Method
3.2.4.1 Application
3.2.4.2 Heat treatment procedure
3.2.4.3 Etching
3.2.5 Gradient Quench Method
3.2.5.1 Application
3.2.5.2 Heat treatment procedure
3.2.5.3 Etching
3.2.6 Pro-eutectoid Cementite Method
3.2.6.1 Application
3.2.6.2 Heat treatment procedure
3.2.6.3 Etching
3.2.7 Oxidation Method
3.2.7.1 Application
3.2.7.2 Heat treatment procedure
3.2.7.3 Etching
3.2.8 Determination of Austenite Grain Size in Austenitic Stainless Steels
3.2.8.1 General
3.2.8.2 Etching
3.3 TEST REPORT
4 DETERMINATION OF GRAIN SIZE IN METALS AND ALLOYS
4.1 SCOPE OF SECTION
4.2 LIMITATIONS ON PROCEDURES
4.3 MICROGRAPHIC METHODS
4.4 TEST REPORT
APPENDIX A
APPENDIX B
B1 GENERAL
B2 ETCHANTS FOR OUTLINING PRIOR AUSTENITE GRAINS IN STEEL
B3 ETCHANTS FOR GENERAL STRUCTURE IN ALUMINIUM AND ITS ALLOYS
B4 ETCHANTS FOR GENERAL STRUCTURE IN COPPER AND ITS ALLOYS
B5 ETCHANTS FOR LEAD BASE
B6 ETCHANTS FOR MOLYBDENUM BASE
B7 ETCHANT FOR PURE NICKEL AND HIGH NICKEL ALLOYS
APPENDIX C
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