5.1x00a0;Microindentation hardness testing provides a measure of the hardness of the microstructural constituents of a porous material. It indicates the hardness the material would have if there were no pores present and the material was tested using macroindentation hardness methods.
5.2x00a0;Microindentation hardness tests allow the evaluation of specific phases, microstructural constituents, and regions or gradients too small for macroindentation hardness testing.
1.1x00a0;This test method covers the determination of the microindentation hardness of powder metallurgy (PM) materials. The test method differs from the approach used for pore-free materials in terms of the precautions required to deal with the porosity.
1.2x00a0;A method for converting the directly measured indentation lengths to other hardness scales, for example, HRC is described in Appendix X1.
1.3x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
- ASTM B933-2014 - 中外标准 - ASTM- 2014/1 - 现行
关键词：PM 粉末冶金 Knoop microindentation hardness microindentation hardness PM powder metallurgy Vickers microindentation hardness
- ASTM B988-2013 - 中外标准 - ASTM- 2013/1 - 现行
关键词：CIP 冷等静压制 粉末冶金 结构件 结构部件 CIP cold isostatic pressing compaction HIP hot isostatic pressing PIF pneumatic isostatic forging powder forging powder metallurgy powder roll compaction pre-alloyed powder sinter structural components Ti Grade 1 Ti Grade 2 Ti Grade 3 Ti Grade 4 Ti-6Al4V Ti-6A1-6V-2Sn Ti 3Al2.5V titanium titanium alloys titanium powder
- ASTM B243-2013 - 中外标准 - ASTM- 2013/1 - 现行
- ASTM B243-2012 - 中外标准 - ASTM- 2012/1 - 现行
The microstructure of a cemented carbide affects the materialrsquo;mechanical and physical properties. This guide is not intended to be used as a specification for carbide grades. Producers and users may use the microstructural information as a guide in developing their own specifications.
1.1 This test method covers apparatus and procedures for the metallographic determination of microstructures in cemented tungsten carbides.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Precautions applying to use of hazardous laboratory chemicals should be observed for chemicals specified in Table 1.
- ASTM B657-2011 - 中外标准 - ASTM- 2011/1 - 现行
关键词：cemented carbides hardmetals microstructure powder metallurgy
1.1 This specification covers sintered aluminum structural parts made primarily from aluminum powders to which controlled amounts of master alloys or elemental copper, magnesium, and silicon have been added by mixing.
1.2 This specification covers the following variables:
1.2.1 Composition8212;Depending upon levels of copper, magnesium, and silicon content, two grades, and
1.3 Parts ordered to this specification will be in one of the following conditions:
1.3.2 As-repressed for additional density, or
1.3.3 All other conditions plus heat treated.
1.4 With the exception of the values for density, for which the use of the gram per cubic centimeter unit is long-standing industry practice, the values stated in SI units are to be regarded as the standard.
- ASTM B595-2011 - 中外标准 - ASTM- 2011/1 - 现行
关键词：密度 联通孔隙度 油浸 粉末冶金 烧结铝 结构配件 热条件 铝粉 烧结金属粉末零件 as-repressed as-sintered density interconnected porosity oil-impregnated powder metallurgy sintered aluminum structural parts thermal condition Aluminum--specifications Aluminum alloys--specifications Aluminum alloys (anodic coatings)--specifications Aluminum alloys (structural)--specifications Aluminum powders Anodic coatings--Al/Al alloys) Electrodeposited coatings--specifications Sintered metal powder parts
- ASTM B243-2011 - 中外标准 - ASTM- 2011/1 - 现行
关键词：Metallurgical materials/applications Metal powders Powder metallurgy (P/M) materials Terminology--metals/alloys materials/applications
1.1 This specification covers powder forged ferrous materials fabricated by hot densification of atomized prealloyed or iron powders and intended for use as structural parts.
1.2 This specification covers powder forged parts made from the following materials:
220.127.116.11 PF-10XX Carbon Steel (produced from atomized iron powder and graphite powder),
18.104.22.168 PF-10CXX Copper-Carbon Steel (produced from atomized iron powder, copper and graphite powders),
22.214.171.124 PF-11XX Carbon Steel with manganese sulfide for enhanced machinability (produced from atomized iron powder, manganese sulfide, and graphite powders),
126.96.36.199 PF-11CXX Copper-Carbon Steel with manganese sulfide for enhanced machinability (produced from atomized iron powder, copper, manganese sulfide, and graphite powders),
188.8.131.52 PF-42XX Nickel-Molybdenum Steel (produced from prealloyed atomized iron-nickel-molybdenum powder and graphite powder),
184.108.40.206 PF-46XX Nickel-Molybdenum Steel (produced from prealloyed atomized iron-nickel-molybdenum powder and graphite powder),
220.127.116.11 PF-44XX Molybdenum Steel (produced from prealloyed atomized iron-molybdenum powder and graphite powder), and
18.104.22.168 PF-49XX Molybdenum Steel (produced from prealloyed atomized iron-molybdenum powder and graphite powder).
Note 18212;Alloy composition designations are modifications of the AISI-SAE nomenclature. For example: 10CXX designates a plain carbon steel containing copper and XX amount of carbon. Compositional limits of alloy and impurity elements may be different from the AISI-SAE limits. Chemical composition limits are specified in Section 6.
Note 28212;XX designates the forged carbon content, in hundredths of a percent, that is specified by the purchaser for the application. For a given specified carbon content, the permissible limits shall be as specified in 6.2.
Note 38212;The old acronym for powder forging P/F has been replaced by PF throughout the document. The change in the prefix for the material designations is just to match the currently approved acronym for powder forging. No change has been made to the material specification and performance characteristics for the various powder forged materials.
22.214.171.124 Grade A8212;Density equivalent to a maximum of 0.5 % porosity. The minimum density of those sections of the powder forged part so designated by the applicable part drawing shall not be less than the value specified in Table 1.
126.96.36.199 Grade B8212;Density equivalent to a maximum of 1.5 % porosity. The minimum density of those sections of the powder forged part so designated by the applicable part drawing shall not be less than the value specified in Table 1.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
- ASTM B848-2010 - 中外标准 - ASTM- 2010/1 - 现行
关键词：powder forged (PF) parts powder forged (PF) steels powder forging (PF) Ferrous metals/alloys Powder forged (P/F) steels/parts Structural metals/alloys--specifications
- ASTM B243-2010 - 中外标准 - ASTM- 2010/1 - 现行
关键词：金相材料/设备 金属粉末 粉末冶金(P/M)材料 术语-金属/合金材料 Metallurgical materials/applications Metal powders Powder metallurgy (P/M) materials Terminology--metals/alloys materials/applications
1.1 This specification covers a variety of ferrous PM structural materials and includes a classification system or material designation code. The classification system used in this specification includes chemical composition, minimum tensile; 0.2 % offset yield strength for as-sintered materials and minimum ultimate tensile strength for heat-treated materials (sinter hardened or quenched and tempered). It also contains minimum density and maximum coercive field strength requirements for iron-phosphorus materials.
1.2 Material classification is governed by the designation code which is explained in Appendix X1. The data provided display typical mechanical properties achieved under commercial manufacturing procedures. Physical and mechanical property performance characteristics can change as a result of subsequent processing steps beyond the steps designated in this standard.
1.3 With the exception of density values for which the g/cm3 unit is the industry standard, property values stated in inch-pound units are the standard. Values in SI units result from conversion in accordance with . They may be approximate and are only for information.
- ASTM B783-2010 - 中外标准 - ASTM- 2010/1 - 现行
关键词：压缩的 延展性 弹性的 耐久 疲劳 硬度 混合动力 冲击 低合金 微米压痕法 PM钢 泊松 不锈的 compressive ductility elastic endurance fatigue hardness hybrid impact low-alloy microindentation PM steel Poisson's stainless Young's Sintered metal powder parts--structural Steel Structural building materials/applications--specifications Structural metals/alloys--specifications Ferrous metals/alloys--specifications Iron-nickel-chromium alloys--specifications Iron powder Nickel alloys--specifications Nickel alloys (powder metallurgy applications) Nickel steel Powder metallurgy (P/M) materials--specifications Carbon steel--specifications