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28 forging - S tamping - Heat Treating
Correspondence Course in Heat Treatment
and Metallography of Steel
Forging-Stamping-Heat Treating has arranged
with Mr. Horace C. Knerr, Director of the Course in
Heat Treatment and Metallography of Steel being
given at Temple University, Philadelphia, Pa., to offer
through this publication, a correspondence course, covering
the same subject.
This course will run for about one year. It will
include a complete set of lessons covering the topics
as outlined below, examination papers for each lesson,
marking and returning papers, personal instruction
by letter where needed, a series of laboratory exercises
to be performed by the student, and a set of
metal specimens for metallographic study. The equipment
required will be simple, and will be such as many
men have available in the plant in which they are employed.
The course is intended for those who wish to study
the treatment, structure and properties of steel in
their spare time. Fundamental principles will be emphasized.
The charge for the complete course will be $25.00.
For further information write to the Editor, Forging-
Stamping-Heat Treating, Box 65, Pittsburgh, Pa.
Outline of Course
I. INTRODUCTORY
1—An Ancient Craft and a Modern Science
2—Physical Metallurgy
3—Principles of Chemistry and Physics
4—Physical Properties of Steel
II. MANUFACTURE OF IRON AND STEEL
1—Processes of Manufacture
(a) Ores and Materials
(b) Pig Iron
(c) Wrought Iron
(d) Crucible Steel
(e) Bessemer
(f) Open Hearth
(g) Electric
(h) Miscellaneous
2—Mechanical Treatment
(a) Hot Working
(b) Cold Working
III. METALLOGRAPHY
1—Microscopic Examination of Metals
(a) The Metallurgical Microscope
(b) Preparation of Specimens, Polishing, Etching
(c) Photomicrography
2—Macroscopic Examination
(a) Deep Etching
(b) Sulphur Printing
(c) Flaws
(d) (a) Pure Segregations Metals
3—Structure (b) Alloys of Metals
(c) Wrought Iron
(d) Steel, Low, Medium and High Carbon
(e) Cast Iron, etc.
(f) Alloy Steels
(g) Impurities
icro-Constituents of Steel
(a) Ferrite
(b) Cementite
(c) Pearlite
(d) Austenite
(e) Martensite
(f) Troostite
(g) Sorbite
• •
5—Critical Points of Steel—Their Manifestations
IV. PYROMETRY
1—Heat and Temperature
2—Methods of Measuring Temperature
(a) Melting, Freezing, Boiling Point
(b) Expansion
(c) Electrical Resistance
(d) Thermo-electric
(e) Optical
(f) Radiation
3—Thermocouples
4—Galvanometers and Millivoltmeters
5—Potentiometers
6—Calibration
7—Temperature Recorders
V. THERMAL ANALYSIS
1—Methods of Determining Critical Points
2—Heating and Cooling Curves
(a) Time-Temperature Curves
(b) Inverse Rate Curves
(c) Difference Curves
VI. THEORY OF HARDENING
1—Nature of Critical Points
(a) Crystallization
(b) Solid Solution
(c) Transformation
2—Constitution Diagrams
3—Slip Interference Theory
VII. HEAT TREATMENT
1—Purposes of Heat Treatment
(a) Tool Steels
(b) Structural Steels
2—Annealing, Normalizing
3—Hardening, Tempering
4—Carburizing, Casehardening
5—Alloy Steels
(a) Effects of Alloys
(b) Treatment
6—High Speed Steel
7—Equipment Used in Heat Treatment
(a) Fuels
(b) Furnaces
(c) Quenching Equipment
(d) Pyrometers
(e) Temperature and Atmosphere Control
8—Miscellaneous and Special Treatments
VIII. INSPECTION AND TESTING
January, 1925
1—Chemical Analysis
2—Physical Testing
(a) Tensile Tests: Tensile Strength, Yield Point, Proportional
Limit, Elongation, Reduction of
(b) Area, Modulus of Elasticity
Hardness Tests: Brinell, Shore Scleroscope,
(c) Rockwell Hardness Tester, etc.
(d) Impact Tests: Oharpy, Izod, etc.
(e) Fatigue Tests
(f) Magnetic Testing
X-Ray Examination
3—Metallographic Inspection
4—Inspection During Fabrication
5—Specifications