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Defect-free sintering of two material powder injection molded components Part II Model

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Abstract

A defect-free, two-material component can be obtained via co-sintering by suitably altering the powder characteristics or compositions, as demonstrated in Part I. In this paper, a model to ascertain the suitability of material systems to be co-sintered without defects such as delamination or interface pores is presented. The model is based on the management of the stress induced due to the difference in shrinkage and an analysis of the in situ strength of the weaker material during sintering. Tool steel in combination with stainless steel admixed with boron and Fe-2Ni admixed with boron are two systems used to validate the model. The predictions of the model are in good agreement with the observations.

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Authors and Affiliations

  1. Center for Innovative Sintered Products, The Pennsylvania State University, 147, Research West, University Park, PA, 16801-6809, USA

    P. Suri, D. F. Heaney & R. M. German

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  1. P. Suri
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  2. D. F. Heaney
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  3. R. M. German
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Suri, P., Heaney, D.F. & German, R.M. Defect-free sintering of two material powder injection molded components Part II Model . Journal of Materials Science 38, 4875–4881 (2003). https://doi.org/10.1023/B:JMSC.0000004408.44675.f6

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