A Study of Microstructure Properties of AISI D2 Tool Steel in Partial Re-Melting Method

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Due to the growing demand for cold-work tool steel in various industrial applications, it is crucial to improve the fabrication technique, because complex shapes involve an extensive and costly workshop effort. Hence, a one-step net-shaping process, such as the semi-solid forming, could offer great benefits. With the aim of finding a minimum process chain for the manufacturing of a high-quality production, the microstructural evolution of the ledeburitic AISI D2 tool steel in the semi-solid-state was studied experimentally via the Direct Partial Re-Melting Method (DPRM). Samples were heated in an argon atmosphere up to 1255°C, which corresponded to about 16% of liquid fraction, and held for 0 minute. The microstructural observation after DPRM showed that the equiaxed austenite grains are observable within a small liquid matrix. The microstructure also contains primary, non-dissolved carbides with a new, precipitated eutectic.

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Edited by:

Mohd Jailani Mohd Nor, Bashir Mohamad Bali Mohamad, Mariana Yusoff et al.

Pages:

76-80

Citation:

M.N. Mohammed et al., "A Study of Microstructure Properties of AISI D2 Tool Steel in Partial Re-Melting Method", Applied Mechanics and Materials, Vol. 699, pp. 76-80, 2015

Online since:

November 2014

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$38.00

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