TY - JOUR
T1 - An analytical model to predict and minimize the residual stress of laser cladding process
AU - Tamanna, N.
AU - Crouch, R.
AU - Kabir, I. R.
AU - Naher, S.
N1 - Funding Information:
Acknowledgements Sincere thanks to EU funded Erasmus Mundus project, EM LEADERS reference: 551411-EM-1-2014-1-UK-ERA MUNDUS-EMA21_EM, and School of Mathematics, Computer Science and Engineering of City, University of London for funding the Project.
Funding Information:
Sincere thanks to EU funded Erasmus Mundus project, EM LEADERS reference: 551411-EM-1-2014-1-UK-ERA MUNDUS-EMA21_EM, and School of Mathematics, Computer Science and Engineering of City, University of London for funding the Project.
Publisher Copyright:
© 2018, The Author(s).
PY - 2018/2/1
Y1 - 2018/2/1
N2 - Laser cladding is one of the advanced thermal techniques used to repair or modify the surface properties of high-value components such as tools, military and aerospace parts. Unfortunately, tensile residual stresses generate in the thermally treated area of this process. This work focuses on to investigate the key factors for the formation of tensile residual stress and how to minimize it in the clad when using dissimilar substrate and clad materials. To predict the tensile residual stress, a one-dimensional analytical model has been adopted. Four cladding materials (Al2O3, TiC, TiO2, ZrO2) on the H13 tool steel substrate and a range of preheating temperatures of the substrate, from 300 to 1200 K, have been investigated. Thermal strain and Young’s modulus are found to be the key factors of formation of tensile residual stresses. Additionally, it is found that using a preheating temperature of the substrate immediately before laser cladding showed the reduction of residual stress.
AB - Laser cladding is one of the advanced thermal techniques used to repair or modify the surface properties of high-value components such as tools, military and aerospace parts. Unfortunately, tensile residual stresses generate in the thermally treated area of this process. This work focuses on to investigate the key factors for the formation of tensile residual stress and how to minimize it in the clad when using dissimilar substrate and clad materials. To predict the tensile residual stress, a one-dimensional analytical model has been adopted. Four cladding materials (Al2O3, TiC, TiO2, ZrO2) on the H13 tool steel substrate and a range of preheating temperatures of the substrate, from 300 to 1200 K, have been investigated. Thermal strain and Young’s modulus are found to be the key factors of formation of tensile residual stresses. Additionally, it is found that using a preheating temperature of the substrate immediately before laser cladding showed the reduction of residual stress.
UR - http://www.scopus.com/inward/record.url?scp=85041436681&partnerID=8YFLogxK
U2 - 10.1007/s00339-018-1585-6
DO - 10.1007/s00339-018-1585-6
M3 - Article
AN - SCOPUS:85041436681
SN - 0947-8396
VL - 124
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 2
M1 - 202
ER -