[1]ZHANG Taiquan,LONG Benfu,LIN Gaoan.Review on the Effect of Alloying Elements on Hydrogen Reduction Process of Tungsten Oxides and Microstructures and Properties of Tungsten Related Materials[J].中国材料进展,2022,41(06):466-476.[doi:10.7502/j.issn.1674-3962.202010007]
　,合金元素对氧化钨氢还原过程和钨相关材料的组织与性能影响研究综述[J].MATERIALS CHINA,2022,41(06):466-476.[doi:10.7502/j.issn.1674-3962.202010007]
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Review on the Effect of Alloying Elements on Hydrogen Reduction Process of Tungsten Oxides and Microstructures and Properties of Tungsten Related Materials()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
41
期数:
2022年第06期
页码:
466-476
栏目:
出版日期:
2022-06-30

文章信息/Info

Title:
合金元素对氧化钨氢还原过程和钨相关材料的组织与性能影响研究综述
文章编号:
1674-3962(2022)06-0466-11
作者:
ZHANG Taiquan1; 2;  LONG Benfu2;  LIN Gaoan2
(1. China National R&D Center for Tungsten Technology, Technology Center of Xiamen Tungsten Co. Ltd., Xiamen 361009, China) (2. Xiamen Golden Egret Special Alloy Co. Ltd., Xiamen 361021, China)
Author(s):
张太全1; 2; 龙本夫2; 林高安2
(1. 国家钨材料工程技术研究中心，厦门钨业股份有限公司技术中心，福建 厦门 361009) (2. 厦门金鹭特种合金有限公司，福建 厦门 361021)
关键词:
alloying elements;  tungsten oxides;  hydrogen reduction;  tungsten powders;  grain morphology;  tungsten related materials
Keywords:
合金元素; 氧化钨; 氢还原; 钨粉末; 晶粒形貌; 钨相关材料
分类号:
TG146.4+11;TF123.7;TF125.2
DOI:
10.7502/j.issn.1674-3962.202010007
文献标志码:
A
摘要:
In the hydrogen reduction process of tungsten oxides, it is difficult to avoid some impurity elements (the characteristic alloying elements of Fe, Cr, Co and Ni, etc. from the reduction boats or furnace tubes) entering the powder. In addition, in order to improve the properties of tungsten related materials (W powder, WC powder, W-based alloys, and WC-based alloys, etc), some alloying elements will also be pre-doped into ammonium paratungstate (APT) or tungsten oxides powders. It is obvious that the above alloying elements will affect the reduction process of tungsten oxides, and further affect the properties of tungsten related materials. In this paper, effects of alloying elements (including start state, content, existence state, distribution, etc.) on the hydrogen reduction process of tungsten oxides and the quality of tungsten powder have been summarized. The growth mechanisms of tungsten particles (grains) are classified by analyzing the chemical reaction evolution between alloying elements and tungsten oxides in the hydrogen reduction process, including forming WOx·nMe2O or Me2O, non-volatile tungstates, volatile alloy oxides, and tungsten solid solution, etc., and reduction effect of alloying elements to tungsten oxides. Effects of alloying elements on microstructures and properties of final powder metallurgical tungsten related materials are also proposed by analyzing strengthening, phase-transition, grain growth, and interface structure forming mechanisms, etc. It is expected that some theoretical assistance can be guided to the actual production of tungsten related materials and products.
Abstract:
在氧化钨氢还原过程中，很难避免一些杂质元素(例如还原舟皿或炉管中的Fe，Cr，Co和Ni等特征合金元素)进入粉末中；另外，为了改善钨相关材料(例如W粉末、WC粉末、W基合金及WC基合金等)的性能，也会在仲钨酸铵(ammonium paratungstate, APT)或氧化钨粉末中预掺杂合金元素，很明显这些合金元素会影响氧化钨的氢还原过程，进一步也会影响钨相关材料的性能。详细综述了合金元素(包括其初始状态、含量、存在状态、分布等)对氧化钨氢还原过程和还原钨粉末性能的影响。通过分析氢还原过程中合金元素与氧化钨的化学反应过程(包括形成WOx·nMe2O或Me2O、难挥发性钨酸盐、挥发性合金氧化物及钨固溶体等，以及合金元素对氧化钨的还原），对钨颗粒(晶粒)的生长机制进行了分类。通过分析合金元素的作用机理(包括：强化机理、相转变机理、晶粒生长机理及界面结构形成机理等)，详细总结了合金元素对最终粉末冶金钨相关材料组织与性能的影响。期望能对钨相关材料及产品的实际生产起到理论指导作用。

备注/Memo

备注/Memo:
Received date:2020-10-21 Revised date: 2021-04-09 Foundation item: STS Plan Supporting Project of the Chinese Academy of Sciences in Fujian Province (2019T3001) First author: ZHANG Taiquan, Male, Born in 1976, PhD, Senior engineer,Email:zhang.taiquan@cxtc.com
更新日期/Last Update: 2022-05-26