Effect of Zr content on the strain rate sensitivity of nanohardness of Ti-Zr-Cu-Ni-Al thin film metallic glass

被引：0
|
作者：
Paremmal, Priyesh [1 ]
Sairam, K. [2 ]
Mishra, Soumya Ranjan [1 ]
Govind, U. [2 ]
Malladi, S. R. K. [2 ]
Dutta-Gupta, Shourya [2 ]
Rao, M. S. Ramachandra [3 ,4 ,5 ]
Murty, B. S. [1 ,2 ,6 ]
机构：
[1] IIT Madras, Dept Met & Mat Engn, Chennai 600042, India
[2] IIT Hyderabad, Dept Mat Sci & Met Engn, Kandi 502285, India
[3] IIT Madras, Dept Phys, Chennai, India
[4] IIT Madras, Nano Funct Mat Technol Ctr, Chennai, India
[5] Inst Technol Madras, Dept Phys, Sardar Patel Rd, Chennai 300036, Tamil Nadu, India
[6] Indian Inst Technol Hyderabad, Hyderabad 502285, Telangana, India
来源：
SURFACE & COATINGS TECHNOLOGY | 2024年 / 478卷
关键词：
Thin film metallic glass; Nanoindentation; Strain rate sensitivity; Hardness; PLASTIC-FLOW; MECHANICAL-BEHAVIOR; ELASTIC-MODULUS; SERRATED FLOW; LOADING RATE; SHEAR BANDS; NANOINDENTATION; HARDNESS; DEFORMATION; INDENTATION;
D O I：
10.1016/j.surfcoat.2023.130370
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The strain rate sensitivity of nanohardness of a magnetron sputtered Ti-Zr-Cu-Ni-Al thin film metallic glass has been investigated. Nanoindentation tests were performed at various loading rates on thin film metallic glasses with three different Zr content. Replacement of Ti with Zr has led to an increase in hardness due to higher atomic packing efficiency and stronger bonds. A non-serrated p-h curve independent of Zr content and a positive dependency of nanohardness on Zr content was observed. The negative strain rate sensitivity and enhancement of strain rate sensitivity with Zr content were discussed.
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页数：7
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