Effect of Cavitation Erosion Wear, Vibration Tumbling, and Heat Treatment on Additively Manufactured Surface Quality and Properties

被引：17

作者：

Grigoriev, Sergey N. ^{[1
]}

Metel, Alexander S. ^{[1
]}

Tarasova, Tatiana V. ^{[1
]}

Filatova, Anastasia A. ^{[1
]}

Sundukov, Sergey K. ^{[2
]}

Volosova, Marina A. ^{[1
]}

Okunkova, Anna A. ^{[1
]}

Melnik, Yury A. ^{[1
]}

Podrabinnik, Pavel A. ^{[1
]}

机构：

[1] Moscow State Univ Technol STANKIN, Dept High Efficiency Proc Technol, Vadkovsky Per 1, Moscow 127055, Russia

[2] Moscow Automobile & Rd Construct State Tech Univ, Dept Technol Construct Mat, Leningradsky Prospect 64, Moscow 125319, Russia

来源：

METALS | 2020年 / 10卷 / 11期

基金：

俄罗斯科学基金会;

关键词：

anticorrosion steel; hardness; laser powder bed fusion; microroughness; tensile test; wear resistance; HIGH-SPEED STEEL; MECHANICAL-PROPERTIES; LASER; COATINGS; DEPOSITION; EVOLUTION; SYSTEM; BEAM; TOOL;

D O I：

10.3390/met10111540

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper is devoted to researching various post-processing methods that affect surface quality, physical properties, and mechanical properties of laser additively manufactured steel parts. The samples made of two types of anticorrosion steels-20kH13 (DIN 1.4021, X20Cr13, AISI 420) and 12kH18N9T (DIN 1.4541, X10CrNiTi18-10, AISI 321) steels-of martensitic and austenitic class were subjected to cavitation abrasive finishing and vibration tumbling. The roughness parameter R-a was reduced by 4.2 times for the 20kH13 (X20Cr13) sample by cavitation-abrasive finishing when the roughness parameter R-a for 12kH18N9T (X10CrNiTi18-10) sample was reduced by 2.8 times by vibratory tumbling. The factors of cavitation-abrasive finishing were quantitatively evaluated and mathematically supported. The samples after low tempering at 240 degrees C in air, at 680 degrees C in oil, and annealing at 760 degrees C in air were compared with cast samples after quenching at 1030 degrees C and tempering at 240 degrees C in air, 680 degrees C in oil. It was shown that the strength characteristics increased by similar to 15% for 20kH13 (X20Cr13) steel and similar to 20% for 12kH18N9T (X10CrNiTi18-10) steel than for traditionally heat-treated cast samples. The wear resistance of 20kH13 (X20Cr13) steel during abrasive wear correlated with measured hardness and decreased with an increase in tempering temperatures.

引用

页数：27

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