H16 粉末冶金分析方法 标准查询与下载

BS ISO 28080:2011 硬质合金.硬质合金的磨损试验

Hardmetals. Abrasion tests for hardmetals

BS EN ISO 3953:2011 金属粉.夯实密度的测定

Metallic powders. Determination of tap density

ISO 3953:2011 金属粉末.振实密度的测定

This International Standard specifies a method for the determination of tap density, i.e. the density of a powder that has been tapped into a container under specified conditions.

Metallic powders - Determination of tap density

ISO 28080:2011 硬质合金.硬质合金的磨损试验

This International Standard specifies a generic test method to determine the abrasion wear characteristics of hardmetals. The procedure complements the ASTM G65 method for dry sand/rubber wheel abrasion, the ASTM B611 method for abrasive wear resistance of cemented carbides, and the ASTM G105 method for conducting wet sand/rubber wheel abrasion tests. The test is appropriate for use in situations where test laboratories have a need to simulate abrasive damage. The procedure includes information which enables the test to be used in a variety of different conditions: a) with counterface wheels of different stiffness (for example steel and rubber); b) wet and dry; c) different abrasive sizes; d) different chemical environments.

Hardmetals - Abrasion tests for hardmetals

ASTM B213-11 使用霍尔流量计漏斗的金属粉末流量标准试验方法

The rate and uniformity of die cavity filling are related to flow properties, which thus influence production rates and uniformity of compacted parts. The ability of a powder to flow is a function of interparticle friction. As interparticle friction increases, flow is slowed. Fine powders may not flow. Humidity and moisture content influence flow rate. Wet or moist powders may not flow. This test method may be part of the purchase agreement between powder manufacturers and powder metallurgy (P/M) part producers, or it can be an internal quality control test by either the producer or the end user.1.1 This test method covers the determination of the flow rate of metal powders and is suitable only for those powders that will flow unaided through the specified apparatus.1.2 The values stated in SI units are to be regarded as the standard (except for the flowmeter funnel, which is fabricated in inch-pound units). The values given in parentheses are for information only.1.3 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.

Standard Test Methods for Flow Rate of Metal Powders Using the Hall Flowmeter Funnel

ASTM B855-11 使用阿诺德测量计和霍尔流量计漏斗的金属粉末体积流量率的标准试验方法

The volumetric flow rate is a measure of the flow characteristics of a metal powder. Measuring flow by volume as compared with flow per unit mass eliminates the variable of the powder density. The ability of a powder to flow and pack is a function of interparticle friction. As the surface area increases, the amount of friction in a powder mass also increases. Consequently, the friction between particles increases, giving less efficient flow and packing. Knowledge of the volumetric flow permits the number of parts that can be made per hour to be estimated. This test method may be part of the purchase agreement between powder manufacturers and powder metallurgy (P/M) part producers, or it can be an internal quality control test by either the producer or the end user.1.1 This test method covers a procedure for measuring the flow characteristics of a given volume of powder.1.2 The values stated in SI units are to be regarded as the standard (except for the Hall Flowmeter Funnel, which is produced in inch-pound units). The values given in parentheses are for information only.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.

Standard Test Method for Volumetric Flow Rate of Metal Powders Using the Arnold Meter and Hall Flowmeter Funnel

ASTM B771-11e1 硬质合金短杆断裂韧度的标准试验方法

The property KIcSR determined by this test method is believed to characterize the resistance of a cemented carbide to fracture in a neutral environment in the presence of a sharp crack under severe tensile constraint, such that the state of stress near the crack front approaches tri-tensile plane strain, and the crack-tip plastic region is small compared with the crack size and specimen dimensions in the constraint direction. A KIcSR value is believed to represent a lower limiting value of fracture toughness. This value may be used to estimate the relation between failure stress and defect size when the conditions of high constraint described above would be expected. Background information concerning the basis for development of this test method in terms of linear elastic fracture mechanics may be found in Refs (1-4). This test method can serve the following purposes: To establish, in quantitative terms significant to service performance, the effects of fabrication variables on the fracture toughness of new or existing materials, and To establish the suitability of a material for a specific application for which the stress conditions are prescribed and for which maximum flaw sizes can be established with confidence.1.1 This test method covers the determination of the fracture toughness of cemented carbides (KIcSR) by testing slotted short rod or short bar specimens. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 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.

Standard Test Method for Short Rod Fracture Toughness of Cemented Carbides

ASTM B963-11 用阿基米德原理测定油含量,油浸渍效率和烧结粉末冶金(PM)制品的互联孔隙的标准试验方法

Oil content values are generally contained in specifications for oil-impregnated PM bearings. The oil-impregnation efficiency provides an indication of how well the as-received parts had been impregnated. The desired self-lubricating performance of PM bearings requires a minimum amount of interconnected porosity and satisfactory oil impregnation of the interconnected porosity. A minimum oil content is specified. The results from these test methods may be used for quality control or compliance purposes.1.1 This standard describes three related test methods that cover the measurement of physical properties of oil-impregnated powder metallurgy products. 1.1.1 Determination of the volume percent of oil contained in the material. 1.1.2 Determination of the efficiency of the oil-impregnation process. 1.1.3 Determination of the percent interconnected porosity by oil impregnation. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are converted in accordance with IEEE/ASTM SI 10 and are for information only. 1.3 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.

Standard Test Methods for Oil Content, Oil-Impregnation Efficiency, and Interconnected Porosity of Sintered Powder Metallurgy (PM) Products Using Archimedesx2019; Principle

ASTM B771-11 烧结碳化物短杆断裂韧度的标准试验方法

The property KIcSR determined by this test method is believed to characterize the resistance of a cemented carbide to fracture in a neutral environment in the presence of a sharp crack under severe tensile constraint, such that the state of stress near the crack front approaches tri-tensile plane strain, and the crack-tip plastic region is small compared with the crack size and specimen dimensions in the constraint direction. A KIcSR value is believed to represent a lower limiting value of fracture toughness. This value may be used to estimate the relation between failure stress and defect size when the conditions of high constraint described above would be expected. Background information concerning the basis for development of this test method in terms of linear elastic fracture mechanics may be found in Refs (1-4). This test method can serve the following purposes: To establish, in quantitative terms significant to service performance, the effects of fabrication variables on the fracture toughness of new or existing materials, and To establish the suitability of a material for a specific application for which the stress conditions are prescribed and for which maximum flaw sizes can be established with confidence.1.1 This test method covers the determination of the fracture toughness of cemented carbides (KIcSR) by testing slotted short rod or short bar specimens. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 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.

Standard Test Method for Short Rod Fracture Toughness of Cemented Carbides

ASTM B946-11 粉末冶金(P/M)产品的表面抛光的标准试验方法

The surface finish of a component may be critical for certain applications, affecting properties such as wear resistance, fatigue strength, and coefficient of friction. Surface finish may also be critical for component assembly or system performance. Dimensional fit and mating surface interaction may require certain surface finish requirements to meet performance specifications.1.1 This test method covers measuring the surface finish of powder metallurgy (PM) products at all stages of manufacturing from green compact to fully hardened finished component. 1.2 This test method provides the definition and schematic of some common surface finish parameters (Ra, Rt, and Rz ISO) 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 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 to determine the applicability of regulatory limitations prior to use.

Standard Test Method for Surface Finish of Powder Metallurgy (P/M) Products

ASTM B417-11 用卡尼漏斗测定非自由流动金属粉末表观密度的标准试验方法

This test method provides a guide for evaluation of an important physical characteristic of a powder known as the apparent density. The measured apparent density bears a relationship to the mass of powder that will fill a fixed volume die cavity. The degree of correlation between the results of this test and the performance of powders during use may vary with each particular application. Note, however, that the presence of moisture, oils, stearic acid, stearates, waxes, and the temperature of the powder mass may alter the physical characteristics of the powder.1.1 This test method covers a procedure for determining the apparent density of non-free-flowing metal powders. It is designed for those metal powders that do not freely flow through the Hall flowmeter funnel. 1.2 With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimeter (g/cm3) and gram (g) units is the longstanding industry practice, the values in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only, and are not considered standard. 1.3 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.

Standard Test Method for Apparent Density of Non-Free-Flowing Metal Powders Using the Carney Funnel

ASTM B946-11(2016) 粉末冶金 (PM) 产品表面抛光的标准试验方法

3.1 The surface finish of a component may be critical for certain applications, affecting properties such as wear resistance, fatigue strength, and coefficient of friction. 3.2 Surface finish may also be critical for component assembly or system performance. Dimensional fit and mating surface interaction may require certain surface finish requirements to meet performance specifications. 1.1 This test method covers measuring the surface finish of powder metallurgy (PM) products at all stages of manufacturing from green compact to fully hardened finished component. 1.2 This test method provides the definition and schematic of some common surface finish parameters (Ra, Rt, and RzISO) 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 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 to determine the applicability of regulatory limitations prior to use.

Standard Test Method for Surface Finish of Powder Metallurgy (PM) Products

ASTM B771-11(2017) 硬质合金短杆断裂韧度的试验方法

5.1 The property KIcSR determined by this test method is believed to characterize the resistance of a cemented carbide to fracture in a neutral environment in the presence of a sharp crack under severe tensile constraint, such that the state of stress near the crack front approaches tri-tensile plane strain, and the crack-tip plastic region is small compared with the crack size and specimen dimensions in the constraint direction. A KIcSR value is believed to represent a lower limiting value of fracture toughness. This value may be used to estimate the relation between failure stress and defect size when the conditions of high constraint described above would be expected. Background information concerning the basis for development of this test method in terms of linear elastic fracture mechanics may be found in Refs (1-7).3 5.2 This test method can serve the following purposes: 5.2.1 To establish, in quantitative terms significant to service performance, the effects of fabrication variables on the fracture toughness of new or existing materials, and 5.2.2 To establish the suitability of a material for a specific application for which the stress conditions are prescribed and for which maximum flaw sizes can be established with confidence. 1.1 This test method covers the determination of the fracture toughness of cemented carbides (KIcSR) by testing slotted short rod or short bar specimens. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 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. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Short Rod Fracture Toughness of Cemented Carbides

DIN EN ISO 11876:2010 硬质金属.钴金属粉末内的钙,铜,铁,钾,镁,锰,纳,镍和锌的测定.火焰原子吸收光谱测定法(ISO 11876-2010).德文版本EN ISO 11876-2010

Hardmetals - Determination of calcium, copper, iron, potassium, magnesium, manganese, sodium, nickel and zinc in cobalt metal powders - Flame atomic absorption spectrometric method (ISO 11876:2010); German version EN ISO 11876:2010

NF A95-488*NF EN ISO 11876:2010 硬金属.钴金属粉末中钙,铜,铁,钾,镁,锰,钠,镍和锌含量的测定.火焰原子吸收分光光度法.

Hardmetals - Determination of calcium, copper, iron, potassium, magnesium, manganese, sodium, nickel and zinc contents in cobalt metal powders - Flame atomic absorption spectrometric method.

BS ISO 28279:2010 烧结金属材料.粉末冶金零件的洁净度测定

Sintered metal materials. Determination of the level of cleanliness of powder-metallurgy parts

NF A95-186-1:2010 硬质合金.显微组织的金相测定.第1部分:显微照片和描述.

Hardmetals - Metallographic determination of microstructure - Part 1 : photomicrographs and description.

NF A95-186-2:2010 硬质合金.显微组织的金相测定.第2部分:WC颗粒尺寸的测量.

Hardmetals - Metallographic determination of microstructure - Part 2 : measurement of WC grain size.

DIN EN ISO 4499-1:2010 硬质合金.显微组织的金相学测定.第1部分:显微照片和描述(ISO 4499-1-2008).德文版本EN ISO 4499-1-2010

This part of ISO 4499 Specifies the methods of detallographic determination of the microstructure of hardmetals using photomicrographs.

Hardmetals - Metallographic determination of microstructure - Part 1: Photomicrographs and description (ISO 4499-1:2008); German version EN ISO 4499-1:2010

ISO 28279:2010 烧结金属材料.粉末冶金部件洁净度的测定

Sintered metal materials - Determination of the level of cleanliness of powder-metallurgy parts