ASTM B243-02
(Terminology)Standard Terminology of Powder Metallurgy
Standard Terminology of Powder Metallurgy
SCOPE
1.1 This terminology includes definitions of terms that are specific to the powder metallurgy industry. These definitions are helpful in the interpretation and application of powder metallurgy terms.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 243 – 02
Standard Terminology of
1
Powder Metallurgy
This standard is issued under the fixed designation B 243; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.3 Phenomena Resulting from Sintering, 3.3.3
3.4 Properties of Sintered Parts, 3.3.4
1.1 This terminology includes definitions of terms that are
3.5 Procedure to Evaluate Sintered Parts, 3.3.5
specific to the powder metallurgy industry. These definitions
3.6 Removal of Binders, 3.3.6
are helpful in the interpretation and application of powder
4. Postsinter Treatments:
metallurgy terms.
4.1 Processes, 3.4.1
2. Referenced Documents 5. Miscellaneous:
5.1 Definitions, 3.5.1
2.1 ASTM Standards:
5.2 Processes, 3.5.2
B 331 Test Method for Compressibility of Metal Powders in
2
5.3 Materials, 3.5.3
Uniaxial Compaction
3.1.2 General:
3. Terminology
1001 agglomerate, n—several particles adhering together.
1002 particulate matter, n—see powder.
3.1 Powder—Terms associated with production, character-
1003 P/M, n—the acronym representing powder metallurgy.
ization, use, and testing of metal powders.
Used as P/M Part, P/M Product, P/M Process, and so forth.
3.1.1 Table of Contents
1004 powder metallurgy, n—the production and utilization
1. Powders:
of metal powders.
1.0 General, 3.1.2
1005 powder, n—particles that are usually less than 1000
1.1 Processes to Produce Powder, 3.1.3
μm (1 mm) in size.
1.2 Types of Powder, 3.1.4
1006 metal powder, n—particles of elemental metals or
1.3 Shapes of Powder Particles, 3.1.5
alloys, normally less than 1000 μm (1 mm) in size.
1.4 Additives to Powder, 3.1.6
3.1.3 Processes to Produce Powder:
1.5 Treatment of Powder, 3.1.7
1101 atomization, n—the dispersion of a molten metal into
1.6 Properties of Powder, 3.1.8
particles by a rapidly moving gas or liquid stream or by
1.7 Procedures to Evaluate Powder, 3.1.9
mechanical means.
1.8 Equipment to Evaluate Powder, 3.1.10
1102 granulation, n—the production of coarse metal par-
2. Forming:
ticles by pouring the molten metal through a screen into water
2.0 General, 3.2.1
(shotting) or by violent agitation of the molten metal while
2.1 Processes for Compacting, 3.2.2
solidifying.
2.2 Conditions of Compacting, 3.2.3
1103 classification, n—separation of a powder into fractions
2.3 Tools Used for Compacting, 3.2.4
according to particle size.
2.4 Phenomena Resulting from Compaction, 3.2.5
1104 air classification, n—the separation of powder into
2.5 Properties of Compacts, 3.2.6
particle size fractions by means of an air stream of controlled
2.6 Forging, 3.2.7
velocity.
2.7 Metal Injection Molding, 3.2.8
1105 gas classification, n—the separation of powder into
3. Sintering:
particle size fractions by means of a gas stream of controlled
3.1 Process for Sintering, 3.3.1
velocity.
3.2 Conditions During Sintering, 3.3.2
1106 chemical deposition, n—the precipitation of one metal
from a solution of its salts by the addition of another metal or
reagent to the solution.
1
This terminology is under the jurisdiction of ASTM Committee B09 on Metal
1107 chemically precipitated metal powder, n—powder
Powders and Metal Powder Products and is the direct responsibility of Subcom-
mittee B09.01on Nomenclature and Technical Data. produced by the reduction of a metal from a solution of its salts
Current edition approved April 10, 2002. Published June 2002. Originally
either by the addition of another metal higher in the electro-
published as B 243 – 49 T. Last previous edition B 243 –01a.
motive series or by other reducing agent.
2
Annual Book of ASTM Standards, Vol 02.05.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B 243
1108 reduced metal powder, n—metal powder produced, 1217 premix, n—a uniform mixture of ingredients to a
without melting, by the chemical reduction of metal oxides or prescribed analysis, prepared by the powder producer, for
other compounds. direct use in compacting powder metallurgy products.
1109 disintegration, n—the reduction of massive material 3.1.5 Shapes of Powder Particles:
to powder. 1301 acicular powder, n—needle-shaped particles.
1110 milling, n—the mechanical treatment of metal powder, 1302 needles, n—elongated rod-like particles.
or metal powder mixtures, as in a ball mill, to alter the size or 1303 granular powder, n—particles having approximately
shape
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.