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The role of Molybdenum as an additive in hardmetal metallic binder alloys

机译：钼作为硬矿金属粘合剂合金中的添加剂的作用

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The role of the hardmetal Metallic Binder (MB) in the development of grades for new demanding applications is finding more and more recognition. Molybdenum (Mo) is usually included in the current formulations of Nickel-base hardmetals or cermets, but few data are available about its specific role as an additive. This study focusses on the effect of Mo additions in CoCr-, NiCr- and CoNiCr-base MB alloys. The Mo solubility, as well as the influence on mechanical properties, such as hardness, three-point bending strength and Palmqvist fracture toughness, were investigated experimentally. Furthermore, this study deals with the impact of Mo on abrasion and corrosion resistance. The results highlight solubility differences in the considered systems, as well as beneficial effects of Mo on hardness, corrosion and abrasion resistance, in particular in Ni- and CoNi-base MBs. Mo is found to play a potential role in the development of next-generation quaternary alloys as hardmetal metallic binders, in particular in view of petrochemical applications in harsh environments.
机译：硬质合金金属粘合剂（MB）在新的苛刻应用等级发展中的作用是越来越多的识别。钼（Mo）通常包括在当前的镍基硬质合金或金属陶瓷制剂中，但很少有数据可以作为添加剂的特定作用。本研究重点是Mo添加在COCR，NICR-和CONICR基础MB合金中的影响。实验研究了Mo溶解度，以及对机械性能的影响，例如硬度，三点弯曲强度和棕榈曲骨折韧性。此外，该研究涉及Mo对耐磨性和耐腐蚀性的影响。结果突出了所考虑的系统中的溶解性差异，以及Mo对硬度，腐蚀和耐磨性的有益效果，特别是在Ni-and Coni-Base MBS中。发现MO在下一代季合金作为硬质合金金属粘合剂的发展中发挥潜在作用，特别是在恶劣环境中的石油化学应用。

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