GB/T 42787-2023 High-entropy alloy powders for addictive manufacturing
This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This document was proposed by China Nonferrous Metals Industry Association.
This document is under the jurisdiction of National Technical Committee on Nonferrous Metals of Standardization Administration of China (SAC/TC 243) and National Technical Committee on Additive Manufacturing of Standardization Administration of China (SAC/TC 562).
High-entropy alloy powders for addictive manufacturing
1 Scope
This document specifies the designation and classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, accompanying documents and purchase order contents of high-entropy alloy powders for addictive manufacturing.
This document is applicable to high-entropy alloy powders prepared by gas atomization, plasma rotating electrode and other processes for additive manufacturing.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1479.1 Metallic powders - Determination of apparent density - Part 1: Funnal method
GB/T 1480 Metallic powders - Determination of particle size by dry sieving
GB/T 1482 Metallic powders - Determination of flow rate - Calibrated funnel methods (Hall flowmeter)
GB/T 5162 Metallic powders - Determination of tap density
GB/T 5314 Powders for powder metallurgical purposes - Sampling
GB/T 19077 Particle size analysis - Laser diffraction methods
GB/T 35351 Additive manufacturing - Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 35351 apply.
4 Designation and classification
The products are divided into five designations according to chemical composition: FeCoNiCrMn, FeCoNiCrAI, FeCoNiCrTi, FeCoNiCrMo and FeCoNiCr. According to the granularity range, the products may be divided into two categories: Class I and Class II.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Designation and classification
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation, storage and accompanying documents
9 Order information
