An ultrasonic fabrication process for carbides reinforced Inconel 718 alloy composites

被引：3

作者：

Hu, Huiqin ^{[1
]}

Wang, Xu ^{[1
]}

Wang, Jianyuan ^{[1
]}

Zhai, Wei ^{[1
]}

Wei, Bingbo ^{[1
]}

机构：

[1] Northwestern Polytech Univ, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710072, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 997卷

关键词：

Ultrasonic solidification; Inconel; 718; Composites; Carbides; Wear properties; BEHAVIOR;

D O I：

10.1016/j.jallcom.2024.174882

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel approach was proposed to prepare carbides reinforced Inconel 718 alloy composites by ultrasonicating graphite mold to introduce carbon element into liquid phase. The graphite mold was designed to resonate with three-dimensional (3D) power ultrasounds, which stimulated cavitation effect and acoustic streaming to promote uniform carbon dispersion and the subsequent incorporation of various carbides with alloy solidification process. It was found that the carbon content infiltrated into liquid alloy increased with ultrasound amplitude and dimension, which attained the maximum of 2.64 wt% C. Ultrasound accelerated the peritectic L +TiC -> NbC reaction, forming a blocky (Ti, Nb)C phase instead of shell -core structured (TiC +NbC) phases. A new (Cr, Fe) 7 C 3 phase was produced due to the extended carbon solubility into liquid alloy under 3D ultrasounds. Meanwhile, the synergistic orientation relationships between gamma(Ni) and carbide phases were enhanced by high -frequency vibration. The ultrasonically solidified composites exhibited excellent wear resistance and hardness as compared with other IN718 alloy -based composites.

引用

页数：8

共 33 条

[1] Evaluation of nanomechanical and nanoscratch response of Inconel 718 reinforced with graphene nanoplates produced by combined ARB-GTAW processes [J].