| 引用本文: | 张佳佳,刘文胜,马运柱,叶晓珊,刘书华.电弧熔炼WFeB三元合金的微观组织与压缩性能研究[J].材料科学与工艺,2014,22(6):23-28.DOI:10.11951/j.issn.1005-0299.20140605. |
| ZHANG Jiajia,LIU Wensheng,MA Yunzhu,YE Xiaoshan,LIU Shuhua.Microstructure and compression properties of WFeB ternary alloys prepared by arc melting[J].Materials Science and Technology,2014,22(6):23-28.DOI:10.11951/j.issn.1005-0299.20140605. |
|
| 摘要: |
| 为研发W合金新体系及其相应的制备技术,采用真空非自耗电弧熔炼方法制备了W37.5Fe56.9B11.6和W18.4Fe67.7B13.9两种合金,利用光学显微镜、X射线衍射、扫描电镜和能谱仪分析了合金内部的相组成、组织形态及元素含量,并对合金的密度及压缩性能进行了测试和分析.研究表明:真空电弧熔炼W37.5Fe56.9B11.6和W18.4Fe67.7B13.9合金的密度分别为13.3 和10.7 g/cm3；两种合金组织中分布着大量脆性相；W37.5Fe56.9B11.6合金的压缩屈服强度和最大压缩强度分别为2 240 和2 321 MPa,而W18.4Fe67.7B13.9合金的压缩屈服强度和最大压缩强度分别为2 400 和2 457 MPa；压缩后两种合金断口呈脆性断裂,断口局部有熔化现象. |
| 关键词: 电弧熔炼 WFeB三元合金 显微组织 压缩性能 |
| DOI：10.11951/j.issn.1005-0299.20140605 |
| 分类号:TB31 |
| 基金项目:湖南省研究生科研创新项目. |
|
| Microstructure and compression properties of WFeB ternary alloys prepared by arc melting |
|
ZHANG Jiajia, LIU Wensheng, MA Yunzhu, YE Xiaoshan, LIU Shuhua
|
|
(State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China)
|
| Abstract: |
| In this study, alloys of W37.5Fe56.9B11.6(at.%)and W18.4Fe67.7B13.9(at.%)were prepared by vacuum non-consumable arc melting. The phase composition, morphology and elemental content were investigated by optical microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM ) and energy dispersive spectroscopy (EDS), respectively. The density and compression behavior were detected and analyzed. The results showed that the density of W37.5Fe56.9B11.6 and W18.4Fe67.7B13.9 was 13.3 g/cm3 and 10.7 g/cm3. Many brittle phases were observed in the two alloys. The yield strength and the maximum compressive strength of W37.5Fe56.9B11.6 were 2 240 MPa and 2 321 MPa, whereas those of W18.4Fe67.7B13.9 were 2 400 MPa and 2 457 MPa, respectively. Both of the alloys showed visible brittle fracture, on which there was partial melting phenomenon. |
| Key words: arc melting WFeB ternary alloys microstructure compression properties |
