Metal powder composite based on 316L stainless steel bimodal powder

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5132233

N. Toropkov, E. Glazkova, N. Rodkevich, A. Pervikov, M. Lerner, S. Muzhetskaya, S. Ghyngazov

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Abstract

Metal powder composites for Powder injection molding (PIM) technology have been investigated. 316L stainless steel bimodal powder, obtained by electric explosion of the wire and multicomponent binder comprising PMMA, PE-LD and Viscowax were used to obtain feedstocks. The effect of PMMA content in the binder on the properties of feedstocks and sintered parts has been studied. As the PMMA content increases, the molding temperature of the parts rises from 140 to 200°C, the strength of the “green” and “brow” parts increases as well. The optimal PMMA content in the binder has been found to be 15–20 vol %. “Brown” samples sintered in vacuum at 1300°C exhibit shrinkage up to 23% and the samples density reaches 0.98 TD. Samples of feedstocks were characterized by TEM, SEM, DSC-TG methods.Metal powder composites for Powder injection molding (PIM) technology have been investigated. 316L stainless steel bimodal powder, obtained by electric explosion of the wire and multicomponent binder comprising PMMA, PE-LD and Viscowax were used to obtain feedstocks. The effect of PMMA content in the binder on the properties of feedstocks and sintered parts has been studied. As the PMMA content increases, the molding temperature of the parts rises from 140 to 200°C, the strength of the “green” and “brow” parts increases as well. The optimal PMMA content in the binder has been found to be 15–20 vol %. “Brown” samples sintered in vacuum at 1300°C exhibit shrinkage up to 23% and the samples density reaches 0.98 TD. Samples of feedstocks were characterized by TEM, SEM, DSC-TG methods.

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基于316L不锈钢双峰粉末的金属粉末复合材料

研究了用于粉末注射成型(PIM)技术的金属粉末复合材料。以电爆制得的316L不锈钢双峰粉末和由PMMA、PE-LD和粘胶组成的多组分粘结剂为原料。研究了粘结剂中PMMA含量对原料性能和烧结件性能的影响。随着PMMA含量的增加，零件的成型温度从140℃上升到200℃，“绿”件和“眉”件的强度也有所增加。粘结剂中PMMA的最佳含量为15-20 vol %。在1300°C真空烧结的“棕色”样品收缩率高达23%，样品密度达到0.98 TD。采用TEM、SEM、DSC-TG等方法对原料进行表征。研究了用于粉末注射成型(PIM)技术的金属粉末复合材料。以电爆制得的316L不锈钢双峰粉末和由PMMA、PE-LD和粘胶组成的多组分粘结剂为原料。研究了粘结剂中PMMA含量对原料性能和烧结件性能的影响。随着PMMA含量的增加，零件的成型温度从140℃上升到200℃，“绿”件和“眉”件的强度也有所增加。粘结剂中PMMA的最佳含量为15-20 vol %。在1300°C真空烧结的“棕色”样品收缩率高达23%，样品密度达到0.98 TD。采用TEM、SEM、DSC-TG等方法对原料进行表征。

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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