Prediction of Influences of Co, Ni, and W Elements on Carbide Precipitation Behavior in Fe–C–V–Cr–Mo Based High Speed Steels. Issue 10 (22nd July 2018)

• Record Type: Journal Article
• Authors: Zhang, Hongwei; Nakajima, Keiji; Su, Mengmeng; Shibata, Hiroyuki; Hedström, Peter; Wang, Weixian; Lei, Hong; Wang, Qiang; Jönsson, Pär Göran; He, Jicheng
• Is Part Of: Steel research international. Volume 89:Issue 10(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-07-22
• Subjects: carbide precipitation -- Co, Ni, and W element addition -- DSC -- EBSD‐EDS analysis -- Fe–C–V–Cr–Mo–W–Co–Ni high speed steel -- partial equilibrium approximation; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.201800172
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : The effects of Co, Ni together with W addition on the precipitation sequence, amount, and composition of carbides and FCC matrix in Fe–C–V–Cr–Mo based alloys are investigated with the help of Partial Equilibrium (PE) approximation and thermodynamic calculations as well as differential scanning calorimetry (DSC) and electron backscatter diffraction (EBSD) ‐ energy dispersive spectrometer (EDS) analyses. Results show that, individually, Co and Ni elements strengthen the matrix by their great solubility in FCC matrix; W element enlarges the hardness of the alloy through benefiting the formation of M6 C carbide. Mutually, the addition of Co and Ni together with W increases the precipitation temperature of the eutectic carbides, although the addition of Co and Ni itself exerts little influence on the nature (type, amount, and composition) of the carbides. These predictions combined with the experimental verifications provide potentials for the alloy design and the property control in high speed steels. Abstract : The effects of Co, Ni together with W addition on the precipitation sequence, amount, and composition of carbides and FCC matrix in Fe–C–V–Cr–Mo based high speed steels are investigated by PE approximation, DSC, and EBSD ‐ EDS analyses. Results show that the addition of Co and Ni together with W increases the precipitation temperature of the eutectic carbides.