TY  - JOUR 
T1  - Acquired Properties Comparison of Solid Nitriding, Gas Nitriding and
                    Plasma Nitriding in Tool Steels
JO  - Materials Research
A1  - Aparecida dos Santos de Almeida, Elisangela
A1  - Milan, Júlio César Giubilei
A1  - Edil da Costa, César
SN  - 1516-1439
UL  - 10.1590/1516-1439.255513
VL  - 18 
Y1  - 2015
PB  - Brasil 
ER  -