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High speed steel produced by spray forming

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Abstract

In this paper, ASP2030 (A30) high speed steel (HSS) was produced by spray forming and the microstructure was studied by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron probe microanalysis (EPMA) and X-ray diffraction (XRD). The spray formed A30 (SF A30) steel exhibited a very uniform and fine microstructure consisting of martensite, retained austenite and uniformly distributed network carbides. Microstructure refining can be explained in terms of the rapid solidification of spray forming. M2C, MC and M6C type carbides were found in the as-sprayed A30 HSS by XRD and TEM. A uniform distribution of carbides was obtained after forging and annealing. The microstructure properties of SF A30 steel indicate that spray forming can be considered as a cost-effective route for the production of A30 steels and other highly alloyed steels.

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Acknowledgments

This research was financially supported by Baosteel Research Institute, People’s Republic of China.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai, 200072, People’s Republic of China

    Shun-Li Zhao, Jie-Yu Zhang & Kuo-Chih Chou

  2. Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai, 201900, People’s Republic of China

    Shun-Li Zhao, Jun-Fei Fan & Hai-Rong Le

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  1. Shun-Li Zhao
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  2. Jun-Fei Fan
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Correspondence to Shun-Li Zhao.

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Zhao, SL., Fan, JF., Zhang, JY. et al. High speed steel produced by spray forming. Adv. Manuf. 4, 115–122 (2016). https://doi.org/10.1007/s40436-016-0137-6

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  • DOI: https://doi.org/10.1007/s40436-016-0137-6

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