当前位置: X-MOL 学术Int. J. Refract. Met. Hard Mater. › 论文详情
Perspectives of metal-diamond composites additive manufacturing using SLM-SPS and other techniques for increased wear-impact resistance
International Journal of Refractory Metals & Hard Materials ( IF 2.794 ) Pub Date : 2020-01-10 , DOI: 10.1016/j.ijrmhm.2020.105192
Ramin Rahmani; Miha Brojan; Maksim Antonov; Konda Gokuldoss Prashanth

In this paper, a new route is introduced to fabricate parts with increased wear and impact resistance for use in tunneling and mining applications. A combination of selective laser melting (SLM) and spark plasma sintering (SPS) to 3D print functionally graded lattices (FGL) that are later filled with metal-diamond composites was used. It was demonstrated that a cellular lattice plays an important role in the consolidation of diamond particles. Impact-abrasive laboratory experiments with tribological device, developed in-house, were carried out to characterize the fabricated samples. The results show that the balance of nickel, molybdenum, and chromium significantly affects the performance of the fabricated specimens. The addition of a higher content of MoCr, Ni and coated diamond particles guarantees higher impact-abrasive resistance of the composite. Our experimental results show that the FGL structure allows a more accurate distribution of diamond particles (variable metal/refractory material content) across the structure and our finite element simulations showed increased ductility and impact absorption ability due to a more uniform distribution of stresses throughout the volume.
更新日期:2020-01-11

 

全部期刊列表>>
Springer Nature 2019高下载量文章和章节
化学/材料学中国作者研究精选
《科学报告》最新环境科学研究
ACS材料视界
自然科研论文编辑服务
中南大学国家杰青杨华明
剑桥大学-
中国科学院大学化学科学学院
材料化学和生物传感方向博士后招聘
课题组网站
X-MOL
北京大学分子工程苏南研究院
华东师范大学分子机器及功能材料
中山大学化学工程与技术学院
试剂库存
天合科研
down
wechat
bug