Material Removal of Aluminate Magnesium Spinel based on Nanoindentation and Microscratch Test

被引：1
|
作者：
Qin, Daicheng [1 ,2 ]
Wang, Chao [2 ]
Zhang, Yan [2 ]
Li, Xiaoyuan [2 ]
Ye, Zuoyan [2 ]
Wei, Qilong [2 ]
Ji, Fang [2 ]
Liu, Pinkuan [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
[2] China Acad Engn Phys, Inst Machinery Mfg Technol, Mianyang 621900, Sichuan, Peoples R China
来源：
SEVENTH ASIA PACIFIC CONFERENCE ON OPTICS MANUFACTURE (APCOM 2021) | 2022年 / 12166卷
基金：
中国国家自然科学基金;
关键词：
Aluminate magnesium spinel; Microscratch; Nanoindentation; Material removal; STRENGTH;
D O I：
10.1117/12.2611792
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The material removal mechanism of aluminate magnesium spinel was investigated by nanoindentation and microscratch test. The hardness increases with the increase of load. The influence of scratch speed and scratch load on the removal mechanism of spinel was analyzed based on the penetration depth, tangential force and acoustic emission (AE) signal. It was found that with the increase of scratch speed, the area of elastic-plastic removal and brittle plastic transition increased. The AE signal appears at the beginning of a brittle plastic transition for the first time. Moreover, the tangential force growth rate of spinel in the elastic-plastic stage is lower than that in the brittle removal stage. The results indicated that improving scratch speed and reducing the scratch load is beneficial to reduce the range of brittle removal of spinel, thus increasing the range of plastic removal and brittle plastic transition.
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页数：6
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