TY - JOUR AU - Callejo, L. M. AU - Kaltzakorta, I. PY - 2014 DO - 10.1179/1743284714Y.0000000594 SN - 0267-0836 AB - The effects of nanoparticle addition on the hardening and tempering 20MnCr steel have been investigated. Addition of oxide nanoparticles to the melt, through a new technology that ensures safe handling, was found to give as hardened steel hardness and... LA - eng TI - Effects of nanoparticle addition on hardening and tempering steel TY - journal article ER -