• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Xie, Jichang (Xie, Jichang.) | Lu, Haifei (Lu, Haifei.) | Lu, Jinzhong (Lu, Jinzhong.) | Song, Xinling (Song, Xinling.) | Wu, Shikai (Wu, Shikai.) | Lei, Jianbo (Lei, Jianbo.)

收录:

EI Scopus SCIE

摘要:

Building better nuclear fusion equipment with reduced cost is important for a sustainable society. In this study, pure tungsten is deposited on different steel substrates by directed energy deposition (DED). Specifically, the deposited layers with graded tungsten content by low and high laser scanning speed are fabricated. In addition, the processing parameters were optimized by analyzing the microstructure, phases and defects. Results show that the 9-layer sample (3000 W @ 3000 mm/min) exhibits a better thermal performance, which the thermal conductivity is about 73.75 W/(m.K) at room temperature and 147.45 W/(m.K) at 900 degrees C, respectively. Finally, the surface of the manufactured thick deposited layer by high-low combined laser scanning speed can reach a high tungsten content of up to 99.78 wt%. It is believed that the additive manufacturing of pure tungsten by DED can combine the advantages of tungsten and steel substrates, and simplify the manufacturing process of thermonuclear fusion devices.

关键词:

Microstructure Thermal conductivity Tungsten Directed energy deposition Nuclear fusion

作者机构:

  • [ 1 ] [Xie, Jichang]Tiangong Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
  • [ 2 ] [Song, Xinling]Tiangong Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
  • [ 3 ] [Lei, Jianbo]Tiangong Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
  • [ 4 ] [Lu, Haifei]Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China
  • [ 5 ] [Lu, Jinzhong]Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China
  • [ 6 ] [Wu, Shikai]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Beijing 100124, Peoples R China

通讯作者信息:

  • [Lu, Jinzhong]Xuefu Rd 301, Zhenjiang 212013, Jiangsu, Peoples R China;;[Lei, Jianbo]BinShuiXi Rd 399, Tianjin 300387, Peoples R China

查看成果更多字段

相关关键词:

来源 :

SURFACE & COATINGS TECHNOLOGY

ISSN: 0257-8972

年份: 2021

卷: 409

5 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:116

JCR分区:2

被引次数:

WoS核心集被引频次: 40

SCOPUS被引频次: 48

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

归属院系:

在线人数/总访问数:401/4965026
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司