77.040.99 金属材料的其他试验方法 标准查询与下载

DIN EN ISO 4499-1:2020 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 4499-1-2020); 德文版本EN ISO 4499-1-2020

Dieses Dokument specifies the methods of metallographic determination of the microstructure of hardmetals using photomicrographs.

Hardmetals - Metallographic determination of microstructure - Part 1: Photomicrographs and description (ISO 4499-1:2020); German version EN ISO 4499-1:2020

ASTM B797-20 表面指氧化物穿透深度的标准测试方法和粉末锻造（PF）钢零件中颗粒氧化物网络的存在

1.1 This test method covers a metallographic method for determining the maximum depth of surface finger-oxide penetration and the concentration of subsurface interparticle oxide networks in critical areas of powder forged steel parts. 1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, health, and environmental 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 Surface Finger-Oxide Penetration Depth and Presence of Interparticle Oxide Networks in Powder Forged (PF) Steel Parts

ASTM E1561-20 应变计玫瑰花数据分析的标准实践

1.1 The two primary uses of three-element strain gage rosettes are (a) to determine the directions and magnitudes of the principal surface strains and (b) to determine residual stresses. Residual stresses are treated in a separate ASTM standard, Test Method E837. This practice defines a reference axis for each of the two principal types of rosette configurations used and presents equations for data analysis. This is important for consistency in reporting results and for avoiding ambiguity in data analysis—especially when computers are used. There are several possible sets of equations, but the set presented here is perhaps the most common. 1.2 The equations in 4.2 and 4.3 of this practice are derived from infinitesimal (linear) strain theory. They are very accurate for the low strain levels normally encountered in the stress analysis of typical metal test objects. They become detectably inaccurate for strain levels greater than about 1 %. Rosette data reduction for larger strains is beyond the scope of this practice. 1.3 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 Practice for Analysis of Strain Gage Rosette Data

BS ISO 16573-1:2020 钢 高强度钢抗氢脆性能评价的测量方法恒载荷试验

What is ISO 16573 ‑ 1- Measurement method- Constant load test about?   ISO 16573 ‑ 1 provides a method for the evaluation of the resistance to hydrogen embrittlement (i.e., hydrogen delayed fracture) using a constant loading test with hydrogen pre-charged specimens. The amount of hydrogen content absorbed in the specimens is analyzed quantitatively by thermal desorption analysis such as gas chromatography, mass spectrometry, and so on. In the case of hydrogen continuous charging such as hydrogen absorption in aqueous solution at free corrosion potential, hydrogen absorption in atmospheric corrosion environments, and hydrogen absorption in high-pressure hydrogen gas, the evaluation method is also briefly described. This method is applicable to the evaluation of hydrogen embrittlement resistance of high-strength steel bolts.  

Steel. Measurement method for the evaluation of hydrogen embrittlement resistance of high strength steels - Constant load test

ISO 16573-1:2020 钢 高强度钢抗氢脆性能评定的测量方法 第1部分：恒载荷试验

This document provides a method for the evaluation of the resistance to hydrogen embrittlement (i.e. hydrogen delayed fracture) using constant loading test with hydrogen pre-charged specimens. The amount of hydrogen content absorbed in the specimens is analysed quantitatively by thermal desorption analysis such as gas chromatography, mass spectrometry and so on. In the case of hydrogen continuous charging such as hydrogen absorption in aqueous solution at free corrosion potential, hydrogen absorption in atmospheric corrosion environments and hydrogen absorption in high pressure hydrogen gas, the evaluation method is also briefly described. This method is mainly applicable to the evaluation of hydrogen embrittlement resistance of high strength steel bolts.

Steel — Measurement method for the evaluation of hydrogen embrittlement resistance of high strength steels — Part 1: Constant load test

T/CWAN 0045-2020 超薄镍基高温合金激光微焊接接头质量检验方法

主要规定了超薄镍基高温合金激光焊接接头的检验方法及技术要求

Laser micro-welded joint quality inspection method of ultra-thin Ni based superalloys

T/CWAN 0044-2020 超薄镍基高温合金激光微焊接工艺规范

规定了超薄镍基高温合金激光焊接操作规程

Specification of laser micro-welding process of ultra-thin Ni based superalloys

EN ISO 4499-1:2020 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

This document specifies the methods of metallographic determination of the microstructure of hardmetals using photomicrographs.

Hardmetals - Metallographic determination of microstructure - Part 1: Photomicrographs and description (ISO 4499-1:2020)

EN ISO 4499-2:2020 硬质合金.显微组织的金相学测定.第2部分:WC颗粒尺寸的测量

This document gives guidelines for the measurement of hardmetal grain size by metallographic techniques only using optical or electron microscopy. It is intended for WC/Co hardmetals (also called cemented carbides or cermets) containing primarily tungsten carbide (WC[1]) as the hard phase. It is also intended for measuring the grain size and distribution by the linear-intercept technique. This document essentially covers four main topics: — calibration of microscopes, to underpin the accuracy of measurements; — linear analysis techniques, to acquire sufficient statistically meaningful data; — analysis methods, to calculate representative average values; — reporting, to comply with modern quality requirements. This document is supported by a measurement case study to illustrate the recommended techniques (see Annex A). This document is not intended for the following: — measurements of size distribution; — recommendations on shape measurements. Further research is needed before recommendations for shape measurement can be given. Measurements of coercivity are sometimes used for grain-size measurement, however, this document is concerned only with a metallographic measurement method. It is also written for hardmetals and not for characterizing powders. However, the method can, in principle, be used for measuring the average size of powders that are suitably mounted and sectioned. [1] DE: Wolframcarbid, EN: tungsten carbide.

Hardmetals - Metallographic determination of microstructure - Part 2: Measurement of WC grain size (ISO 4499-2:2020)

20/30373031 DC BS ISO 16573-2 钢 高强度钢抗氢脆性能评价的测量方法 第2部分：慢应变率试验

BS ISO 16573-2. Steel. Measurement method for the evaluation of hydrogen embrittlement resistance of high strength steels - Part 2. Slow stain rate test

ASTM B796-20 粉末锻造用铁粉非金属夹杂物含量的标准试验方法

1.1 This test method covers a metallographic method for determining the nonmetallic inclusion level of ferrous powders intended for powder forging (PF) applications. 1.2 The test method covers repress powder forged test specimens in which there has been minimal lateral material flow (< 1 %). The core region of the powder forged test specimen shall contain no porosity detectable at 100×. 1.3 This test method is not suitable for determining the nonmetallic inclusion level of powder forged test specimens that have been forged such that the core region contains porosity. At the magnification used for this test method, residual porosity is hard to distinguish from oxide inclusions. Too much residual porosity makes a meaningful assessment of the inclusion population impossible. 1.4 The test method may be applied to materials that contain manganese sulfide (admixed or prealloyed), provided the near neighbor separation distance is changed from 30 µm to 15 µm. NOTE 1—The test method may be applied to powder forged parts where there has been a greater amount of material flow provided: The near neighbor separation distance is changed, or The inclusion sizes agreed between the parties are adjusted for the amount of material flow. 1.5 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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 Nonmetallic Inclusion Content of Ferrous Powders Intended for Powder Forging (PF) Applications

EN ISO 643:2020 钢的显微照相的决心明显的晶粒尺寸

This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensional plane, even in a sample with a perfectly consistent grain size.

Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2020-03)

DIN EN ISO 643:2020 钢.表观粒度的显微照相测定法(ISO/DIS 643-2017);德文版本prEN ISO 643-2017

This International Standard specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensional plane, even in a sample with a perfectly consistent grain size.

Steel - Micrographic determination of the apparent grain size (ISO/DIS 643:2017); German and English version prEN ISO 643:2017

YB/T 5338-2019 钢中奥氏体定量测定 X射线衍射仪法

X-ray diffractometer method for quantitative determination of austenite in steel

ASTM E82/E82M-14(2019) 测定金属晶体取向的标准试验方法

1.1 This test method covers the back-reflection Laue procedure for determining the orientation of a metal crystal. The back-reflection Laue method for determining crystal orientation may be applied to macrograins and micrograins depending on the beam size within polycrystalline aggregates, as well as to single crystals of any size. This test method is described with reference to cubic crystals and other structures such as: hexagonal, tetragonal, or orthorhombic crystals. 1.2 Most natural crystals have well developed external faces, and the orientation of such crystals can usually be determined from inspection. The orientation of a crystal having poorly developed faces or no faces at all (for example, a metal crystal prepared in the laboratory) shall be determined by more elaborate methods. The most convenient and accurate of these involves the use of X-ray diffraction. The “orientation of a metal crystal” is known when the positions in space of the crystallographic axes of the unit cell have been located with reference to the surface geometry of the crystal specimen. This relation between unit cell position and surface geometry is most conveniently expressed by stereographic or gnomonic projection. 1.3 Units—The values stated in either SI units or inchpound 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 nonconformance with the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 Determining the Orientation of a Metal Crystal

ASTM E2283-08(2019) 钢和其他微结构特征中非金属夹杂物的极值分析标准实践

1.1 This practice describes a methodology to statistically characterize the distribution of the largest indigenous nonmetallic inclusions in steel specimens based upon quantitative metallographic measurements. The practice is not suitable for assessing exogenous inclusions. 1.2 Based upon the statistical analysis, the nonmetallic content of different lots of steels can be compared. 1.3 This practice deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4.1 For measurements obtained from light microscopy, linear feature parameters shall be reported as micrometers, and feature areas shall be reported as micrometers. 1.5 The methodology can be extended to other materials and to other microstructural features. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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 Practice for Extreme Value Analysis of Nonmetallic Inclusions in Steel and Other Microstructural Features

ASTM E1916-11(2019) 混合大量金属的标准指南

1.1 This guide covers the identification or segregation, or both, of mixed metal lots under plant conditions using trained plant personnel. 1.2 The identification is not intended to have the accuracy and reliability of procedures performed in a laboratory using laboratory equipment under optimum conditions, and performed by trained chemists or technicians. The identification is not intended to establish whether a given piece or lot of metal meets specifications. 1.3 Segregation of certain metal combinations is not always possible with procedures provided in this guide and can be subject to errors. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 Guide for Identification of Mixed Lots of Metals

DB53/T 937-2019 铟渣中铟含量的测定 火焰原子吸收分光光度法

Determination of Indium Content in Indium Slag Flame Atomic Absorption Spectrophotometry

ASTM E562-19e1 用系统手动点计数法测定体积分数的标准试验方法

1.1 This test method describes a systematic manual point counting procedure for statistically estimating the volume fraction of an identifiable constituent or phase from sections through the microstructure by means of a point grid. 1.2 The use of automatic image analysis to determine the volume fraction of constituents is described in Practice E1245. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 Determining Volume Fraction by Systematic Manual Point Count

ASTM E562-19 用系统手动点计数法测定体积分数的标准试验方法

Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count