The Effect of Heat Treatment on Microstructure and Properties of D256 Homemade Electrode Surfacing Layer

CONG Shu-lin, HAN Yan-zhao, LIU Li-xin, SHI Hai-fang

Surface Technology ›› 2013, Vol. 42 ›› Issue (2) : 104-107.

PDF(3660 KB)
PDF(3660 KB)
Surface Technology ›› 2013, Vol. 42 ›› Issue (2) : 104-107.
Applied Technology

The Effect of Heat Treatment on Microstructure and Properties of D256 Homemade Electrode Surfacing Layer

  • CONG Shu-lin1, HAN Yan-zhao2, LIU Li-xin3, SHI Hai-fang4
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Abstract

In order to fix low-loads wear failure of high manganese steel components , D256 electrode coating were added with a certain amount of ilmenite, vanadium iron, boron carbide and rare earth elements, by the method of manual arc welding, metallurgy reaction spontaneously generated hard reinforced particles to change the distribution of the hard phase in the high-manganese steel surfacing layer, and by subsequent heat treatment to improve the wear resistance of the surfacing layer. Results show that: compared with the D256 electrode surfacing layer, adding 12 % Ti-Fe +12 % V-Fe +6 % B4C to the D256 electrode surfacing layer provides finer grain size, as well as some fine second phase hard particles, whose hardness is 53 HRC, and these particles are more evenly distributed and finer after solution and aging, while its hardness reduces to 49 HRC, its wear-resistance improves comparatively.

Key words

surfacing; authigenic borides; wear resistance; heat treatment

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CONG Shu-lin, HAN Yan-zhao, LIU Li-xin, SHI Hai-fang. The Effect of Heat Treatment on Microstructure and Properties of D256 Homemade Electrode Surfacing Layer[J]. Surface Technology. 2013, 42(2): 104-107
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