The microstructure and mechanical properties of nickel fabricated by material extrusion-based 3D printing

Author:

Song Daosen1,Ye Guiyou2,Shi Kai1,Han Zhifeng1,Zhou Wei1,Fu Zhiguo1,Guo Chenxu1,Gao Gongru2,Zhang Guangming1ORCID

Affiliation:

1. Shandong Engineering Research Center for Additive Manufacturing, Qingdao University of Technology 1 , Qingdao 266520, China

2. Shandong Changlin Machinery Group Co., Ltd. 2 , Linyi 276700, China

Abstract

This study presents a fabrication method for preparing Ni using material extrusion-based 3D printing. First, the corresponding printing process window was optimized by exploring the relationship between the layer thickness and printing parameters (printing air pressure, printing speed, and printing height) of different solid content slurries, slurries rheology, and platform heating temperature. Then, the experiments on Ni slurries with different solid contents under different post-treatment methods were investigated to obtain the effect of solid content and temperature on the material properties. The results show that when the solid content of Ni slurry increases from 70 to 84 wt. %, the relative density of Ni increases, the shrinkage decreases, and the mechanical properties increase; when the sintering temperature increases from 1250 to 1400 °C, the relative density of Ni increases, the shrinkage increases, the mechanical properties decrease, and the particle size increases. The relative density range is 82%–96.6%, the shrinkage range is 53.5%–59.6%, the tensile strength range is 237.7–294 MPa, and the hardness range is 51.6–104.8 HV. Finally, the relationship between slurry, manufacturing process, structure, and properties was established through process optimization and experimental results, and 3D models of different structures were prepared to complete the preparation of Ni with high structural integrity, good interlayer bonding, and excellent properties.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Shandong Province

Publisher

AIP Publishing

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.7亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2025 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3