超声处理对Fe-Cr颗粒混合物压实烧结后固结的影响

IF 0.6 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metalurgija Pub Date : 2018-01-23 DOI:10.14203/METALURGI.V29I2.289

M. Silalahi, P. Untoro, B. Suharno, S. Harjanto

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引用次数: 1

摘要

超声法获得的Fe-Cr微合金是固结过程的初始核心。因此，它有利于形成具有稳定相的均匀体Fe-Cr合金。在本研究中，对由（Fe+Cr）混合粒子合成大块Fe-Cr合金进行了超声波处理的结果。颗粒固结是在不添加任何润滑剂的情况下通过压实过程进行的，然后在1300°C下使用感应炉在石英玻璃胶囊中进行烧结过程。还对没有经过先前超声处理的Fe-Cr颗粒的混合物进行固结以进行比较。采用扫描电子显微镜（SEM）和密度测量方法对铁铬生坯进行了压实研究。使用SEM-EDS（能量色散光谱）、XRD（x射线衍射）和密度测量方法观察了通过烧结过程生产的Fe-Cr合金的本体。与未经超声处理制备的Fe-Cr粉末相比，用超声处理的Fe-Cr-微合金粉末制备的大块Fe-Cr合金在成分上更均匀，并且具有更好的相稳定性。在烧结过程中，在石英玻璃胶囊中生产大块的Fe-Cr合金，生产出了不含氧化物的Fe-Cr-合金。

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ULTRASONIC TREATMENT EFFECT ON THE CONSOLIDATION OF Fe-Cr PARTICLE MIXTURES AFTER COMPACTION AND SINTERING PROCESS

Fe-Cr microalloys which obtained by ultrasonic method are the initial cores for the consolidation process. Therefore its facilitate the formation of the homogeneous bulk of Fe-Cr alloy with a stable phase. In this research, the synthesis of bulk of Fe-Cr alloy from the particles mixture of (Fe+Cr) as the ultrasonic treatment results has been carried out. The particles consolidation has been carried out through a process of compaction without adding any lubricants and followed by sintering process in the quartz glass capsules by using induction furnace at 1300 °C. Consolidation of mixture of Fe-Cr particles that have not undergone previous ultrasonic treatment is also made for a comparison. The investigation by using the SEM (scanning electron microscope)- and density measurements method were preformed on the Fe-Cr green powders compaction. The bulk of Fe-Cr alloys that are produced trough sintering process was observed using SEM-EDS (energy dispersive spectroscopy), XRD (x-ray diffraction), and density measurements method. The bulk of Fe-Cr alloy prepared with ultrasonically treated Fe-Cr microalloy powders, is more homogeneous in composition and has a better phase stability in comparison to Fe-Cr powders prepared without the ultrasonic treatment. Production of bulk Fe-Cr alloy in quartz glass capsule during the sintering process has produced Fe-Cr alloy without oxides.

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来源期刊

Metalurgija 工程技术-冶金工程

CiteScore

1.20

自引率

33.30%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Metalurgija is primary scientific periodical that publishes scientific papers (original papers, preliminary notes, reviewed papers) as well as professional papers from the area of basic, applicable and developing researching in metallurgy and boundary metallurgy areas (physics, chemistry, mechanical engineering). These papers relate to processing ferrous and non-ferrous metallurgy, treating investigating as well as testing of raw materials, semi products and products, especially in the area of improving new materials and possibilities of their implementation. The journal is the only national periodical of this kind in the Republic of Croatia and covers the scientific field of metallurgy, especially: physical metallurgy and materials; process metailurgy, (ferrous and non-ferrous); mechanical metallurgy (processing, power , etc.); related (adjoing) branches: mechanlcal engineering, chemistry, physics etc.