WC–Co alloys have enjoyed great practical significance owing to their excellent properties during the past decades. Despite the advantages, however, recently there have been concerns about the challenges associated with the use of Co, i.e. price instability (the major incentive for alternative binder development), toxicity and properties degeneration. Thus, the current study applies towards summarize the current knowledge of the impacts of different binders partial or total substitution of the traditional cobalt binder highlighting the influences of metal, intermetallic compound, ceramics (metal oxide) binders on the sintering behavior as well as mechanical properties of WC-based alloys, so as to provide reference for those who would like to enhance the performance of cemented carbides with better reliability advancing them to further wide applications and prepare the alloys in a way that is environment friendly, harmless to human health and low in production cost. It is concluded that the alternative for cobalt in tungsten carbide cemented carbide is economically and technically feasible. Strict control of the chemical composition of the binder coupled with taking into careful account the effects of sintering process and subsequent treatments is of great importance to improve the sintering behavior and tailor mechanical properties of tungsten carbide-based hardmetals.

中文翻译：

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结合粘结剂相的WC基合金的开发与应用

在过去的几十年中，WC-Co合金由于其优异的性能而具有极大的实际意义。尽管有这些优点，但是近来人们一直担心与使用Co相关的挑战，即价格不稳定（替代粘合剂开发的主要诱因），毒性和性能退化。因此，本研究旨在总结现有知识，以了解不同粘合剂对传统钴粘合剂的部分或全部替代所产生的影响，着重强调金属，金属间化合物，陶瓷（金属氧化物）粘合剂对烧结行为以及机械性能的影响。 WC基合金，从而为那些希望以更高的可靠性来提高硬质合金性能的人提供参考，将其推广到更广泛的应用领域，并以对环境无害，对人类健康无害且生产成本低的方式制备合金。结论是，在碳化钨硬质合金中钴的替代方案在经济和技术上都是可行的。严格控制粘结剂的化学组成，并仔细考虑烧结过程和后续处理的影响，对于改善烧结行为和调整碳化钨基硬质合金的机械性能至关重要。结论是，在碳化钨硬质合金中钴的替代方案在经济和技术上都是可行的。严格控制粘结剂的化学组成，并仔细考虑烧结过程和后续处理的影响，对于改善烧结行为和调整碳化钨基硬质合金的机械性能至关重要。结论是，在碳化钨硬质合金中钴的替代方案在经济和技术上都是可行的。严格控制粘结剂的化学组成，并仔细考虑烧结过程和后续处理的影响，对于改善烧结行为和调整碳化钨基硬质合金的机械性能至关重要。