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YS/T 971-2014: Titanium-nickel shape me: ncry alloy wires
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 971-2014 | English | 239 |
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Titanium-nickel shape me: ncry alloy wires
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YS/T 971-2014
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Basic data | Standard ID | YS/T 971-2014 (YS/T971-2014) | | Description (Translated English) | Titanium-nickel shape me: ncry alloy wires | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H64 | | Classification of International Standard | 77.150.50 | | Word Count Estimation | 9,943 | | Date of Issue | 10/14/2014 | | Date of Implementation | 4/1/2015 | | Quoted Standard | GB/T 228.1; GB/T 4338; GB/T 8180; GB/T 13239; GB/T 16597; YY/T 0641 | | Regulation (derived from) | People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This Standard specifies the term nickel-titanium shape memory alloy wire, requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificates and contracts (or orders) content. This Standard applies to the p | YS/T 971-2014: Titanium-nickel shape me: ncry alloy wires---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.
Titanium-nickel shape me. ncry alloy wires
ICS 77.150.50
H64
People's Republic of China Nonferrous Metals Industry Standard
Nickel-titanium shape memory alloy wire
Issued on. 2014-10-14
2015-04-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard was drafted. Yes REVIEW billion of the new Materials Co., Ltd., Xi'an thinking Metal Materials Co., Xiansaite metal material
Development Co., Ltd.
The main drafters of this standard. Miao Weidong, YUAN Shan, Wang Jiangbo, cattle Jie, Xue SA, Cao Jimin, Pingzhao Wei, Zhu.
Nickel-titanium shape memory alloy wire
1 Scope
This standard specifies the memory alloy wire (hereinafter referred to as wire) of nickel-titanium shape terminology, requirements, test methods, inspection rules and signs, including
Loading, transport, storage and quality certificate with the contract (or purchase order) content.
This standard applies to the production of frames, orthodontic wire, super-elastic spring, with a temperature control element and other cold state, hot working condition, and annealed
Wire straightening state.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
RT Test Method. Test Part 1 GB/T 228.1 metallic materials tensile
GB/T 4338 high-temperature metallic materials - Tensile testing
GB/T 8180 Titanium and titanium alloy products, packaging, labeling, transportation and storage
GB/T 13239 Low Temperature Tensile testing of metallic materials
GB/T 16597 metallurgical product analysis X-ray Fluorescence Spectrometry General
Standard Method YY/T 0641 thermal analysis measurements NiTi alloy phase transition temperature
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Shape recovery temperature shaperecoverytemperature
Depending on the shape of the shape memory effect occurs reply ending temperature to martensite reverse transformation finish temperature (Af) to symbol.
3.2
Thermostatic response rate (δft) constanttemperaturerecoveryrate
In the super-elastic temperature range tensile test, when the pull to 5% elongation (equivalent to Ls Lres), the cancellation of the load will occur over
Elastic strain. After loading canceled, the tensile residual elongation of the specimen Lres (mm), an elongation of reply Ls (mm).
Thermostatic response rate (δft) by equation (1).
δft =
Ls
0.05 × L0 ×
100 (1)
Where.
δft --- thermostat response rate,%;
Ls --- recoverable elongation in millimeters (mm);
Standard L0 --- specimen gage length, in millimeters (mm).
3.3
Martensitic reverse transformation finish temperature (Af) austenitefinishtemperature
In the heating step during the phase transition, the end opposite the martensite phase transition temperature of the matrix; or, in a two-step process of heating the phase transition, R-phase (Guo
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