Publication Type : Conference Proceedings
Publisher : Materials Today: Proceedings
Source : Materials Today: Proceedings (2020): 685-688
Url : https://www.sciencedirect.com/science/article/pii/S2214785320300018?via%3Dihub
Campus : Chennai
School : School of Engineering
Department : Mechanical Engineering
Year : 2020
Abstract : The effect of heat treatment and TiN coating on AISI O1 cold work tool steel was investigated. Microstructural and phase analysis was done using optical microscope and X-Ray diffraction. The crystalline size of heat treated and TiN coating were observed to be ∼5.4 μm and ∼0.05 μm respectively. Elemental composition was examined using Energy-dispersive spectroscopy. Mechanical and wear properties of substrate was analyzed using Hystron TI 950 Triboindentater. TiN coated substrate exhibited higher hardness (∼19.6 GPa) and elastic modulus (∼289 GPa) than the heat treated substrate. Hardness and elastic modulus post TiN coating was increased by ∼308% and ∼53.7% respectively. Lower specific wear rate was observed for TiN coated substrate (∼1.8 × 10–12 m2N−1) than heat treated substrate (∼2.7 × 10–15 m2N−1). In summary, TiN coated substrate has higher mechanical and wear resistance compared to heat treated substrate.
Cite this Research Publication : Kumar S, Maity SR, and Patnaik L. "Effect of heat treatment and TiN coating on AISI O1 cold work tool steel." Materials Today: Proceedings (2020): 685-688