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GB/T 41605-2022: Silicon nitride materials for rolling bearing balls - Test method for fracture resistance at room temperature - Indentation fracture (IF) method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 41605-2022 | English | 209 |
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Silicon nitride materials for rolling bearing balls - Test method for fracture resistance at room temperature - Indentation fracture (IF) method
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GB/T 41605-2022
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Basic data | Standard ID | GB/T 41605-2022 (GB/T41605-2022) | | Description (Translated English) | Silicon nitride materials for rolling bearing balls - Test method for fracture resistance at room temperature - Indentation fracture (IF) method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q32 | | Word Count Estimation | 10,172 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41605-2022: Silicon nitride materials for rolling bearing balls - Test method for fracture resistance at room temperature - Indentation fracture (IF) method
---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.
Silicon nitride materials for rolling bearing balls - Test method for fracture resistance at room temperature - Indentation fracture (IF) method
ICS 81.060.30
CCSQ32
National Standards of People's Republic of China
Silicon nitride material for rolling bearing balls
Room temperature indentation fracture resistance test method indentation method
method,MOD]
Published on 2022-07-11
2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is modified using ISO 14627.2012 "Fine ceramics (advanced ceramics, high-tech ceramics) Determination by indentation fracture method at room temperature
Test Methods for Fracture Resistance of Silicon Nitride Materials for Rolling Bearing Balls.
Compared with ISO 14627.2012, this document has more structural adjustments. Comparison list of structure number changes between two files
See Appendix A.
Compared with ISO 14627.2012, this document has many technical differences. In the outer margins of the clauses involved, use vertical
A single line (︱) is marked. See Appendix B for a list of these technical differences and their reasons.
The following editorial changes have been made to this document.
---In order to harmonize with the existing standards, the standard name is changed to "Test Method for Indentation Fracture Resistance of Silicon Nitride Materials for Rolling Bearing Balls at Room Temperature"
Indentation method";
--- Adjust the "scope" of the ISO 14627.2012 document, and integrate the content related to KI and IFR in the "scope" with Definition 3.1
And redefine the term "3.1".
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Building Materials Federation.
This document is under the jurisdiction of the National Industrial Ceramics Standardization Technical Committee (SAC/TC194).
This document is drafted by. Sinoma High-tech Nitride Ceramics Co., Ltd., Shandong Industrial Ceramics Research and Design Institute Co., Ltd., Hefei Huizhixin
Material Technology Co., Ltd., Shenzhen Haoqing Technology Co., Ltd., Zhejiang Jingjiu Bearing Industry Co., Ltd., Jiangxi Industrial Ceramics Institute Fine Ceramics Co., Ltd.
Company, Jiangsu Lixing General Steel Ball Co., Ltd., Luoyang LYC Bearing Co., Ltd., Taisheng New Material Technology Co., Ltd., Shandong National Ceramics
Functional Materials Co., Ltd., Dong'a Seagull Steel Ball Co., Ltd.
The main drafters of this document. Zhang Weiru, Sun Feng, Xu Xuemin, Dong Tingxia, Liu Yun, Song Jian, Xu Xuan, Yao Yongwei, Zhang Dong, Chen Changzhu, Yang Yong,
Mo Xuekui, Song Haitao, Shang Yanqing, Zhang Xiaoli, Zhao Gaoming, Gao Liwen, Xu Jinmeng, Zhang Jing, Liu Minghui, Li Honghao.
Silicon nitride material for rolling bearing balls
Room temperature indentation fracture resistance test method indentation method
1 Scope
test method.
This document applies to silicon nitride materials for bearing balls.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
JC/T 2172 Fine ceramic elastic modulus, shear modulus and Poisson's ratio test methods pulse excitation method
ISO 6507-2 Vickers hardness test for metallic materials - Part 2.Inspection and calibration of hardness testers (Metalicmaterials-
Note. GB/T 4340.2-2012 Vickers hardness test for metallic materials Part 2.Inspection and calibration of hardness testers (ISO 6507-2.2005, MOD)
ISO 26602.2017 Fine ceramics (advanced ceramics, advanced technical ceramics) silicon nitride materials for rolling bearing balls and rollers [Finece-
balsandrolers]
Note. GB/T 31703-2015 Ceramic Ball Bearing Silicon Nitride Balls (ISO 26602.2009, NEQ)
3 Terms and Definitions
ISO 26602.2017 and the following terms and definitions apply to this document.
3.1
KI,IFR
The ability of a material to resist indentation to produce crack propagation.
Note. KI and IFR are related to the wear resistance of the material, the rolling contact fatigue life of the bearing ball and the processing technology of the silicon nitride material. KI,IFR are different from fracture toughness
KIC, KIC is the intrinsic property of the material and has nothing to do with the test method.
[Source. ISO 26602.2017, 3.1, with modifications]
3.2
preprocessedbal
Unprocessed silicon nitride balls after sintering.
4 Principles
The detection method of KI and IFR is to press the diamond indenter of the Vickers hardness tester into the sample to be tested. After the indenter is removed, measure the two diagonal lines of the indentation.
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