2020. e EFFECT OF ?-Al2O3 NANOPARTICLES ADDITION ON SOME PROPERTIES OF CoCrMo ALLOY FABRICATED BY POWDER METALLURGY ROUTE: abstract, introduction, mathematical and experimental models, results and discussion, conclusions. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING. 20, 1 (Mar. 2020), 47–62. DOI:https://doi.org/10.32852/iqjfmme.v20i1.461.