Experimental and Statistical Analysis of the Effect of Heat Treatment on Surface Roughness and Mechanical Properties of Thin-Walled Samples Obtained by Selective Laser Melting from the Material AlSi10Mg

被引：2

作者：

Grigoriev, Sergey N. ^{[1
]}

Nikitin, Nikita ^{[1
]}

Yanushevich, Oleg ^{[2
]}

Kriheli, Natella ^{[2
]}

Kramar, Olga ^{[2
]}

Khmyrov, Roman ^{[3
]}

Idarmachev, Idarmach ^{[3
]}

Peretyagin, Pavel ^{[1
,2
]}

机构：

[1] Moscow State Univ Technol STANKIN, Spark Plasma Sintering Res Lab, Vadkovsky Per 1, Moscow 127055, Russia

[2] AI Yevdokimov Moscow State Univ Med & Dent, Minist Healthcare Russian Federat, Fed State Budgetary Educ Inst Higher Educ, Moscow 127006, Russia

[3] Moscow State Univ Technol STANKIN, Lab Innovat Addit Technol, Vadkovsky Per 1, Moscow 127055, Russia

来源：

MATERIALS | 2023年 / 16卷 / 23期

关键词：

selective laser melting; aluminum alloys; surface roughness; heat treatment; mechanical properties; MICROSTRUCTURE; BEHAVIOR; PARAMETERS; ACCURACY; POROSITY;

D O I：

10.3390/ma16237326

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Statistical analysis of mechanical properties of thin-walled samples (similar to 500 microns) obtained by selective laser melting from AlSi10Mg material and subjected to heat treatment for 1 h at temperatures from 260 degrees C to 440 degrees C (step of aging temperature change 30 degrees C) has shown that the maximum strain hardening in the stretching diagram section from yield strength to tensile strength is achieved at the heat treatment temperature equal to 290 degrees C. At carrying out of correlation analysis, a statistically significant positive correlation between deformation corresponding to yield strength and the sum of heights of the largest protrusions and depths of the largest depressions of the surface roughness profile within the basic length of the sample (Rz) and the full height of the surface roughness profile (Rmax) was established. It was found that the reason for the correlation is the presence of cohesive states between the extreme values of the surface roughness profile that persist along the entire length of the specimen.

引用

页数：23

共 61 条

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