摘要：Cavitation erosion on sedimentary rocks by addition of abrasive nanoparticles was evaluated through ultrasonic cavitation experiments. Two kinds of typical sedimentary rocks, sandstone and organic-rich shale, were eroded by pure water cavitation and nanoparticle cavitation, respectively. Aluminum alloy was employed as a blank control group for contrast. The erosion rates, microstructure changes, and surface roughness before and after treatments were obtained to understand the erosion mechanisms. The results demonstrate that abrasive nanoparticle is capable of enhancing erosion and creating volume fragmentation on sedimentary rocks. In detail, the erosion rate on rock materials reaches ten times that on aluminum alloy. Mass loss of rock materials of the early stage is much severe compared to the erosion of the later stage. Brittle failure mode always dominates the rock failure that creates the volume fragmentation behavior. Enhanced cavitation intensity and high-speed abrasive impacts are the two main mechanisms to explain the enhanced erosion phenomenon. This work supports that cavitation abrasive waterjet with nanoparticles is a potential novel drilling and fracturing technology.

关键字：Cavitation Nanoparticle Rock Erosion Experiment

ISSN号：2190-5509

卷、期、页：卷: 10 期: 4 页: 1319-1330

发表日期：2020-04-01

影响因子：2.880300

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：APPLIED NANOSCIENCE

通讯作者：张鑫远,张瑞,彭炽

第一作者：盛茂,张宇宁,田守嶒

论文类型：期刊论文

论文概要：盛茂,张鑫远,张瑞,张宇宁,彭炽,田守嶒，Enhanced erosion on sedimentary rock by adding abrasive nanoparticles in ultrasonic cavitation，APPLIED NANOSCIENCE，2020，卷: 10 期: 4 页: 1319-1330

论文题目：Enhanced erosion on sedimentary rock by adding abrasive nanoparticles in ultrasonic cavitation