An Analysis on Formation of Pore and Density of Spray forming Deposition Billet of Steel GCr15

Special Steel ›› 2012, Vol. 33 ›› Issue (1): 1-4.

An Analysis on Formation of Pore and Density of Spray forming Deposition Billet of Steel GCr15

Fan Wenjun^1，2， Zhang Yin^1，2， Han Cuizhen¹

1 School of Rare Earth,
2 Inner Mongolia Key Lab for Utilization Baiyun Obo Multi-metallic Resources and Elected State Key Lab, Inner Mongolia University of Science and Technology, Baotou 014010

Received:2011-06-08 Online:2012-02-01 Published:2022-09-19
Supported by:
国家自然科学基金和上海宝钢集团公司联合资助项目(50474082)

GCr15钢喷射成形沉积坯孔隙形成及致密度的分析

樊文军^1，2，张胤^1，2，韩翠珍¹

内蒙古科技大学 1稀土学院; 2内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室，省部共建国家重点实验室培养基地，包头014010

作者简介:樊文军(1976-)，男，硕士，讲师，从事冶金过程数值模拟研究。

Abstract

Abstract: As the steel GCrl5 (1. 01%C, 1. 48% Cr) is melted in an 100 kg induction furnace up to 1 580 ℃, the metal liquid flows through furnace bottom liquid conduct nozzle and sprays in atomized chamber by high pressure nitrogen flow to atomize micron liquid drops and form deposition billet at bottom. The compared analysis on pore distribution, microstructure and density of spraying formed steel GCrl5 has been carried out by using optical microscope, scanning electron microscope. Results show that there are macro-pores at deposition billet cross section and irregular-shaped micro-pores distributed in whole deposition billet. The average relative density of whole deposited billet is 85. 51%.

摘要： GCr15钢(1.01%C、1.48%Cr)经100kg中频感应炉熔化至1 580℃,金属液流经炉底导液管喷嘴处被高压氮气流在雾化室雾化成微米级液滴,在基底形成沉积坯。通过使用金相显微镜、扫描电镜对GCr15钢喷射成形试样的孔隙分布、微观组织和密度进行比较分析。结果表明,沉积坯截面上有宏观孔隙,在整个截面上也存在一些形状不规则的孔隙;沉积坯整体平均相对致密度为85.51%。

关键词: GCr15钢, 喷射成形, 沉积坯, 孔隙, 致密度

Fan Wenjun, Zhang Yin, Han Cuizhen. An Analysis on Formation of Pore and Density of Spray forming Deposition Billet of Steel GCr15[J]. Special Steel, 2012, 33(1): 1-4.

樊文军, 张胤, 韩翠珍. GCr15钢喷射成形沉积坯孔隙形成及致密度的分析[J]. 特殊钢, 2012, 33(1): 1-4.