Banca de QUALIFICAÇÃO: VITOR FERREIRA VIEIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : VITOR FERREIRA VIEIRA
DATE: 26/10/2022
TIME: 10:30
LOCAL: REMOTA
TITLE:

ANALYSIS OF MECHANICAL CHARACTERISTICS OF THIN FILMS IN SIMULATION OF TRIBOLOGICAL TESTS BY THE
FINITE ELEMENT METHOD

KEY WORDS:

DLC, finite element method, nanoindentation

PAGES: 74
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Processos de Fabricação
SUMMARY:

Coatings are used to improve the mechanical, chemical or electrical characteristics of thin films on surfaces. Among them, the study of DLC thin films can be mentioned, having high hardness, chemical inertia and low coefficient of friction. These characteristics are important to improve the performance of cutting tools and mechanical components. To identify the characteristics of these films, it is important to carry out mechanical tests, such as nanoindentation, which can provide important information in understanding and improving coating techniques and, when combined with the finite element method, leads to more detailed results of material behavior during testing. Considering this, the present work aimed to study and apply a nanoindentation test simulation of a DLC coated high-speed steel specimen. The results were compared with experimental data seeking correlation of the model. Considerable proximity between the experimental results and those obtained by the simulation were observed, thus validating the model built. The model will be used to verify various characteristics of the material and method in order to better understand the mechanical behavior of the DLC coating.

BANKING MEMBERS:
Externo à Instituição - JÁNES LANDRE JÚNIOR - PUCMinas
Externo à Instituição - PAULO SÉRGIO MARTINS - UNA
Interno - SANDRO CARDOSO SANTOS
Presidente - YUKIO SHIGAKI