Using the FEM model for design the heat treatment of an agricultural tools
Laen...
Kuupäev
2018
Kättesaadav alates
Autorid
Kešner, A.
Chotěborský, R.
Linda, M.
Hromasová, M.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Agricultural tools need mechanical properties such as abrasive wear, hardness and
toughness. These mechanical
properties are achieved by choosing a suitable steel and subsequent
heat treatment of the steel. Phases of the microstructure affects the final steel properties. The
phase composition in the steel is influenced with the designing of the heat treatment. 25C
rMo4
steel was investigated for the production of agricultural tools. The heat treatments ware designed
for different cooling conditions. The salt bath was used to cooling as a medium with subsequent
cooling on the water or in the air. The FEM method was u
sed to designing the heat treatment
conditions. The Johnson
-
Mehl
-
Avrami
-
Kolmogorov equation and the Koistinen
-
Marburger
equations were used to prediction the microstructure phases. The microstructures were verified
with experimental measurements. The ASTM
G65 method was using for abrasion resistance tests.
The results show that this procedure can be used to designing parameters of heat treatment of
agricultural tools.
Kirjeldus
Article
Märksõnad
chisel, abrasive wear, microstructure of steel, hardness, articles