Bulk metallic glass and their composites (BMGMCs) are a new class of materials\nwhich possess superior mechanical properties as compared to existing\nconventional materials. Owing to this, they are potential candidates for tomorrow�s\nstructural applications. However, they suffer from poor ductility\nand little or no toughness which render them brittle and they manifest catastrophic\nfailure under applied force. Their behavior is dubious, unpredictable\nand requires extensive experimentation to arrive at conclusive results. In\npresent study, an effort has been made to design bulk metallic glass matrix\ncomposites by the use of modeling and simulation. A probabilistic cellular\nautomaton (CA) model is developed and described in present study by author\nwhich is used in conjunction with earlier developed deterministic model to\npredict microstructural evolution in Zr based BMGMCs in additive manufacturing\nliquid melt pool. It is elaborately described with an aim to arrive at\nquantitative relations which describe process and steps of operations. Results\nindicate that effect of incorporating all mass transfer and diffusion coefficients\nunder transient conditions and precise determination of probability number\nplay a vital role in refining the model and bringing it closer to a level that it\ncould be compared to actual values. It is shown that proposed tailoring can\naccount for micro structural evolution in metallic glasses.
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