GB/T 14999.6-2010 English PDFUS$369.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14999.6-2010: Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings Status: Valid
Basic dataStandard ID: GB/T 14999.6-2010 (GB/T14999.6-2010)Description (Translated English): Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H57 Classification of International Standard: 77.140.99 Word Count Estimation: 16,151 Date of Issue: 2010-12-23 Date of Implementation: 2011-09-01 Quoted Standard: GB/T 6394; GB/T 24177; ASTM E930-1999 (2007) Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the type and characteristics of the dual grain structure, and provides the corresponding measurement methods and results marked. GB/T 14999.6-2010: Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings ICS 77.140.99 H57 National Standards of People's Republic of China Forged high temperature alloys Double grain structure and primary carbide distribution test methods 2010-12-23 release 2011-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released ForewordAppendix A and Appendix B of this standard are normative appendices. This standard is proposed by China Iron and Steel Industry Association. This standard by the National Steel Standardization Technical Committee. The main drafting unit of this standard. Iron and Steel Research Institute, Metallurgical Industry Information Standards Institute. The main drafters of this standard. Yuan Ying, Zhuang Jingyun, Zhang Ji, Lu Yan Yan, Feng Di, Tong Jintao, Lu Xudong, Dai Qiang, Liu Baoshi.IntroductionThis standard provides a method for the determination of double grain microstructures and primary carbides distribution of forged superalloys. As a result of the original photo The geometry of the slice is based and therefore has nothing to do with the alloy itself. If the double grain structure in the alloy and the standard provided by this type of mold Corresponding to the picture, according to the type of determination; if the alloy in the primary carbide distribution and the standard provided by the standard rating picture , Can be assessed using the comparative method, can also be measured by quantitative indicators. The measurement method of this standard is only applicable to the determination of two-dimensional plane (cross-section) double grain structure and primary carbide distribution, Determination of Microstructure and Primary Carbide Distribution of Gravitational Double Grain. Forged high temperature alloys Double grain structure and primary carbide distribution test methods1 Scope1.1 This standard describes the type and characteristics of double grain organization and specifies the corresponding measurement method and result identification. 1.2 This standard specifies the determination method and result identification of the primary carbides distribution. 1.3 This standard is applicable to the determination of double grain microstructures and primary carbides in forged superalloys. 1.4 This standard only as a recommended method of determination, not forged high-temperature alloy product acceptance test qualified level of the provisions of the provisions.2 normative reference documentsThe terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. GB/T 6394 Determination of average grain size of metals GB/T 24177 Double grain size characterization and determination method ASTME930-99 (2007) Determination of maximum grain size level (ALA grain size) on metallographic detection surface Characteristics and Classification of Double Grain Microstructures 3.1 Double grain organization There are at least two distinct sizes, different distribution of grain, where the fine grain and coarse grain grain size difference is not less than three. 3.1.1 Individual coarse grains ALA (aslargeas) condition The individual coarse grains are randomly distributed in the longitudinal section of the sample, and the grain size difference of the average grain size is not less than 3. And the percentage of the total area occupied by these isolated coarse grains is not more than 5%. Such as the percentage of its area is greater than 5%, according to two levels Grain corresponding to the provisions of the implementation. 3.1.2 Mixed-grain wide-rangecondition The vertical grain and the smallest grain have a grain size of not less than 5 in the field of view. Poor granularity. 3.1.3 Necklace grain necklacecondition In the observation section, two different sizes of grain are distributed in the field of view. The small grains are surrounded by large grains and the two grain sizes Level difference of not less than 3. When the small grains are still surrounded by large grains, but the percentage of the total area of the observed range is greater than 50% The two-stage grain is specified for execution. 3.1.4 Two - stage grain bimodalcondition There are two distinctly different grain sizes in the field of view, and the two grain sizes are more than three, and the two ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14999.6-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 14999.6-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 14999.6-2010_English with my colleagues?Answer: Yes. 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