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An investigation of spalling of case-hardened Nitralloy

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Abstract

Spalling of nitralloy (balance Fe, 0.42% C, 0.55% Mn, 0.3% Si, 1.6% Cr, and 1.0 % Al) during grinding has been studied. It was found that excess nitrogen which diffused into the α-Fe lattice during a two-step nitriding process was responsible for making the alloy surface brittle. This caused the spalling of the alloy during a subsequent machining operation. Practically feasible ways to avoid this problem have been discussed.

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References

  1. “ASM Handbook”, (American Society for metals, OH, USA), Vol. 4

  2. K. C. JAIN, A. N. KUMAR, R. N. MITTAL and B. L. JUNEJA, Mater. Sci. Technol. 2 (1986) 856.

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Authors and Affiliations

  1. Center for Grinding Research and Development, University of Connecticut, Storrs, CT, 06269, USA

    T DOGGART & H GUPTA

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  1. T DOGGART
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  2. H GUPTA
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DOGGART, T., GUPTA, H. An investigation of spalling of case-hardened Nitralloy. Journal of Materials Science 32, 2059–2062 (1997). https://doi.org/10.1023/A:1018514503726

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  • DOI: https://doi.org/10.1023/A:1018514503726

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