Investigation of compositional analysis and physical properties for Ni-Cr-Nb alloys using laser-induced breakdown spectroscopy

被引：12
作者：
Salloom, Hussein [1 ]
Hamad, Tagreed [2 ]
机构：
[1] Al Nahrain Univ, Al Nahrain Nanorenewable Energy Ctr, Baghdad, Iraq
[2] Al Nahrain Univ, Coll Engn, Laser & Optoelect Dept, Baghdad, Iraq
来源：
OPTICA APPLICATA | 2021年 / 51卷 / 03期
关键词：
LIBS technique; elemental analysis; nickel alloys; hardness; STEEL; LIBS; PARAMETERS; HARDNESS; METALS;
D O I：
10.37190/oa210310
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, laser-induced breakdown spectroscopy (LIBS) analysis is optimized for direct estimation of elemental composition, thermal conductivity and hardness for Ni-Cr-Nb alloys. These alloys were chosen with a variable elemental content of niobium and chromium. The influence of laser energy and shot numbers on measuring line intensity was investigated. Based on the ratio between two spectral lines, calibration curves were formed to estimate the element concentration and LIBS results were confirmed with related energy-dispersive X-ray spectroscopy (EDS) data. Hardness and thermal conductivity estimation using LIBS were done by measuring the ratio between two spectral lines, plasma excitation temperature and electron density for different samples. Semi-empirical formulas correlated hardness and thermal conductivity with plasma temperature were established.
引用
收藏
页码：429 / 444
页数：16
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