铜对粉末冶金铌钒微合金钢的影响研究

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2022-01-01 DOI:10.2298/sos2202153e

M. Erden, A. Erer, Çağrı Odabaşı, S. Gündüz

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引用次数: 1

摘要

本文研究了Cu含量对添加Nb-V的微合金粉末冶金钢组织、力学性能和电导率的影响。在750 MPa压力下对微合金钢试样进行压制，在1400oC氩气中烧结1 h，用光学显微镜观察微合金钢的晶粒尺寸和相分布。利用扫描电镜(SEM)和能谱仪(EDS)分析了试样的析出相和断口形貌。对添加不同Cu含量的Nb-V微合金钢进行了拉伸试验、硬度试验和电导率测定。结果表明，添加10 wt.% Cu的PM微合金钢的屈服强度(YS)和极限抗拉强度(UTS)最高。当Cu含量从10%增加到15%时，YS和UTS下降。延伸率也随Cu含量的增加而降低。虽然电导率总体上随着Cu的加入而增加，但在添加15 wt.% Cu时观察到电导率有所下降。

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The investigation of the effect of cu addition on the Nb-V microalloyed steel produced by powder metallurgy

In this work, the effect of Cu content on the microstructures, mechanical properties and electrical conductivity of Nb-V added microalloyed powder metallurgy (PM) steels were investigated. Microalloyed steel samples were pressed at 750 MPa and sintered at 1400oC in argon atmosphere for 1 h. The grain size and phase distribution of the microalloy steels were determined by optical microscope. The precipitates and fracture surface of samples were analyzed with the help of SEM and EDS analyses. Tensile test, hardness test and electrical conductivity measurement were carried out for the Nb-V added microalloyed steel with different Cu content. Results indicated that 10 wt.% Cu added PM microalloyed steel showed the highest values in yield strength (YS) and ultimate tensile strength (UTS). However, when the amount of Cu content increased from 10 to 15 wt.%, YS and UTS decreased. Elongation also tends to decrease with increasing Cu content. Although the electrical conductivity in general increased with the addition of Cu, a decrease in some conductivity was observed in the addition of 15 wt.% Cu.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.