TY - JOUR
T1 - Evaluation of boron mobility on the phases FeB, Fe 2 B and diffusion zone in AISI 1045 and M2 steels
AU - Campos, I.
AU - Ramírez, G.
AU - Figueroa, U.
AU - Martínez, J.
AU - Morales, O.
N1 - Funding Information:
This work has been supported by the research grant 42883/A-1 of Consejo Nacional de Ciencia y Tecnología at Mexico. I. Campos thanks the project 20060030 chair supported by the Secretaría de Investigación y Posgrado of the Instituto Politécnico Nacional. The authors wish to thank Mr. Jorge Hadad Bellamy for their valuable cooperation.
PY - 2007/1/30
Y1 - 2007/1/30
N2 - The present study evaluates the growth kinetics of boride layers at the material surface on AISI 1045 and M2 steels during the paste boriding process. This surface hardening technique produces on the material two characteristic phases FeB, Fe 2 B and a transition zone, denominated diffusion zone, in the layer/substrate interface. The thermochemical treatment was done at three different temperatures: 1193, 1223 and 1273 K with two treatment times: 2 and 6 h for the 1045 steel, and 1223, 1253 and 1273 K with the same treatment times for M2 steel, modifying the boron potentials in equilibrium at the substrates surfaces. Using the mass balance equation, and assuming a linear concentration profile at the interfaces, the mobility of boron was determined on both types of steels. The influence of boron potential, treatment time and temperatures is clearly observed on the growth kinetics of boride layers.
AB - The present study evaluates the growth kinetics of boride layers at the material surface on AISI 1045 and M2 steels during the paste boriding process. This surface hardening technique produces on the material two characteristic phases FeB, Fe 2 B and a transition zone, denominated diffusion zone, in the layer/substrate interface. The thermochemical treatment was done at three different temperatures: 1193, 1223 and 1273 K with two treatment times: 2 and 6 h for the 1045 steel, and 1223, 1253 and 1273 K with the same treatment times for M2 steel, modifying the boron potentials in equilibrium at the substrates surfaces. Using the mass balance equation, and assuming a linear concentration profile at the interfaces, the mobility of boron was determined on both types of steels. The influence of boron potential, treatment time and temperatures is clearly observed on the growth kinetics of boride layers.
KW - Boriding
KW - Boron diffusion
KW - Growth kinetics
KW - Iron borides layers
UR - http://www.scopus.com/inward/record.url?scp=33846429187&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2006.07.046
DO - 10.1016/j.apsusc.2006.07.046
M3 - Artículo
SN - 0169-4332
VL - 253
SP - 3469
EP - 3475
JO - Applied Surface Science
JF - Applied Surface Science
IS - 7
ER -