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Test for high temperature friction and wear properties of laser repairing coatings - Ball-on-disc method
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Basic data
| Standard ID | GB/T 43853-2024 (GB/T43853-2024) |
| Description (Translated English) | Test for high temperature friction and wear properties of laser repairing coatings - Ball-on-disc method |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | H22 |
| Classification of International Standard | 77.040.10 |
| Word Count Estimation | 18,120 |
| Date of Issue | 2024-04-25 |
| Date of Implementation | 2024-04-25 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 43853-2024: Test for high temperature friction and wear properties of laser repairing coatings - Ball-on-disc 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.
ICS 77:040:10
CCSH22
National Standards of People's Republic of China
Laser repair layer high temperature friction and wear
Performance test ball-disc method
coatings-Bal-on-discmethod
Released on 2024-04-25
2024-04-25 implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 2
5 Test conditions 2
6 Materials and Reagents 2
7 Instruments and Equipment 2
7:1 Ball-disc method test apparatus 2
7:2 Stereo microscope 4
7:3 Magnifying Glass 4
7:4 Microscope 4
7:5 Contact profilometer 5
8 Sample 5
8:1 General requirements 5
8:2 Ball specimen 5
8:3 Disk test piece 5
9 Test Procedure 6
9:1 Sample preparation before testing 6
9:2 Wear test preparation 6
9:3 Friction Measurement 6
9:4 Observation of wear scar morphology after test 6
9:5 Wear scar measurement of ball specimens 6
9:6 Wear scar measurement on disc specimens 7
9:7 Number of test repetitions 8
10 Test result calculation 8
10:1 Specific wear rate of ball specimen 8
10:2 Specific wear rate of disc specimen 9
10:3 Friction coefficient 10
10:4 Rounding off to 10
11 Test Report 10
Reference 11
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 for standardization documents"
Drafting:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Machinery Industry Federation:
This document is under the jurisdiction of the National Laser Repair Technology Standardization Technical Committee (SAC/TC482):
This document was drafted by: Shenyang University, Shenyang Continental Laser Technology Co:, Ltd:, Hubei University of Technology, Shenyang Aerospace University, Shenyang
University of Science and Technology, Institute of Metal Research, Chinese Academy of Sciences, Shenyang Foundry Research Institute Co:, Ltd:, China Machinery Engineering Institute Group, Shanghai Institute of Electric Power, Shanghai Jiaotong University
Tong University, Nanchang Hangkong University, Shanghai Continental Tianrui Laser Surface Engineering Co:, Ltd:, China Aero Engine Commercial Aircraft Engine Co:, Ltd:,
Baowu Equipment Intelligent Technology Co:, Ltd:, Baoshan Iron & Steel Co:, Ltd:, Yueyang Continental Laser Technology Co:, Ltd:, Nanjing University of Aeronautics and Astronautics,
Xi'an Shaangu Power Co:, Ltd:, Tai'an Quality and Technical Inspection and Testing Institute, Jilin University, State-owned Sichuan West Machinery Factory, Shanghai Shipbuilding Industry Corporation
Art Institute:
The main drafters of this document are: He Chunlin, Chen Jiang, Tan Haifeng, Lou Deyuan, Hui Li, Wang Wei, Zhang Song, Yao Ge, Wang Wen, He Younian, Zhou Song,
Liu Yu, Yang Guang, Ma Guofeng, Liu Yan, Wu Chenliang, Xie Huasheng, Li Lei, Feng Kai, Peng Xiao, Qian Yuxin, Chen Xiaowen, Cai Le, Zhao Jun, Shi Kun, Chen Yongchang,
Chen Guoxi, Fan Jiancheng, Zhou Wujun, Zhan Xiaohong, Sun Biao, Lu Zhengjie, Zhang Zhihui, Ling Yunhe, Wang Chao, Xiao Jiulin, Niu Jianmin, and Wang Juan:
Introduction
Laser repair technology is an advanced surface engineering technology that is widely used in industries such as metallurgy, petrochemicals, electricity, and ships:
A large number of laser repaired parts are used in high temperature friction environments, such as continuous casting equipment, hot rolling equipment and power equipment in the metallurgical field:
The evaluation of high temperature friction and wear performance of this laser repair layer is particularly important:
The ball-on-disc configuration is the most common high-temperature friction and wear test machine type, which is widely used in scientific research and product performance evaluation:
Due to the lack of relevant standards, the current high-temperature friction and wear test equipment, test procedures, test parameters, test result processing, etc: are not fully
The same often leads to large differences in test data obtained by different personnel, making them difficult to compare: Obviously, this will cause great difficulties for scientific research and engineering development:
It brings great confusion to the personnel and even causes serious engineering misjudgment:
High temperature wear resistance and engineering of laser repair layers (such as iron, nickel, cobalt-based and their composite materials) based on a large number of high temperature friction conditions
This document was developed through industry-university-research cooperation: The main purpose is to standardize the test method for determining the high temperature wear resistance of laser repair layers by the ball-on-disk method:
The laser repair layer is often inhomogeneous:
structure (density change), and during the test, the repair layer will inevitably experience high temperature oxidation, wear debris adhesion, etc: This document stipulates that based on the wear
The wear resistance is characterized by volume rather than wear mass measurements to avoid the problem of poor correlation of wear test data:
The test results obtained according to this document can provide data for evaluating the service safety of laser repaired metal parts under high temperature friction conditions:
The formulation of this document will promote the technological innovation of laser repair enterprises and the establishment of product quality systems, and promote the development of laser repair technology in my country:
It plays a positive role in the development and engineering application:
Laser repair layer high temperature friction and wear
Performance test ball-disc method
1 Scope
This document describes the test method for the elevated temperature friction and wear performance of laser repaired layers using the ball-on-disc method:
This document is applicable to the determination of the heat transfer between laser repair layers or between one laser repair layer and another by the ball-disk method under the conditions of 35℃~1000℃:
Test for wear resistance and friction generated by coaxial sliding contact between other materials:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 678 Chemical reagent ethanol (anhydrous ethanol)
GB/T 686 Chemical reagent acetone
GB/T 6062 Product Geometry Specification (GPS) Nominal characteristics of contact (stylus) instruments using the surface structure profile method
GB/T 8170 Rules for rounding off values and expression and determination of limit values
GB/T 17754 Tribological terms
GB/T 19864:2 Stereo microscope Part 2: High performance stereo microscope
GB/T 20968 Selection of low-power magnifying glasses as auxiliary tools for non-destructive testing visual inspection
GB/T 29037 Thermal spraying protective coatings against high temperature corrosion and oxidation
GB/T 29795 Laser repair technology terms and definitions
3 Terms and definitions
The terms and definitions defined in GB/T 17754 and GB/T 29795 and the following apply to this document:
3:1
Using laser repair technology, a surface coating that is metallurgically bonded to the substrate is formed on the surface of damaged parts:
3:2
Wear test
Methods for assessing the friction and wear properties of materials in sliding contact:
[Source: ISO 20808:2016, 3:2]
3:3
Specific wear rate
Material removal rate due to wear:
Note: The wear volume V (mm3) is expressed by the unit normal force F (N) and the unit sliding distance L (m): The relationship is: Ws = V/(F × L), and the unit is cubic
Square millimeter per Newton meter [mm3/(N·m)]:
...
