In-situ Synthesized WC Particle in Electromagnetic Field

Niu Libin; Xu Yunhua; Wu Hong

Views : 0 下载量: 80 CSCD: 1

Export
Share
Collection
Album

In-situ Synthesized WC Particle in Electromagnetic Field
Vol. 29, Issue 11, Pages: 998-1001(2009)
Published： 2009 ，
DOI：

扫描看全文

[1]牛立斌,许云华,武宏.电磁场作用下原位生成WC颗粒的研究[J].特种铸造及有色合金,2009,29(11):998-1001+974.

Niu Libin, Xu Yunhua, Wu Hong. In-situ Synthesized WC Particle in Electromagnetic Field. [J]. Special Casting & Nonferrous Alloys 29(11):998-1001(2009)
[1]牛立斌,许云华,武宏.电磁场作用下原位生成WC颗粒的研究[J].特种铸造及有色合金,2009,29(11):998-1001+974. DOI：

Niu Libin, Xu Yunhua, Wu Hong. In-situ Synthesized WC Particle in Electromagnetic Field. [J]. Special Casting & Nonferrous Alloys 29(11):998-1001(2009) DOI：

摘要

在电磁场的作用下

金属W丝和灰口铸铁熔体中的C原子集团发生原位反应

形成WC颗粒

该颗粒分布在未反应的W丝周围。在颗粒和未反应的W丝之间存在一个明显的过渡区域。电磁场加速了熔体中的质量传递

有助于在W丝周围形成一系列的Fe-W-C三元微区

微区中W的含量较高

这改善了原位合成WC颗粒的动力学条件。但WC颗粒的间隙降低了元素的扩散速度。

Abstract

In-situ WC particle was synthesized with tungsten wire and carbon atom cluster in the gray cast iron molten in electromagnetic field.The particles synthesized were distributed around the residual tungsten wire

where a clear diffusion zone was formed.The electromagnetic field can accelerate mass transfer processes in the molten

which is beneficial for the quick formation of a series of small Fe-W-C ternary zones containing high tungsten concentration around the tungsten wires and the improvement of the kinetic condition of in-situ WC.However

the gap of the inter-particles can restrain the diffusive rates of elements.