Abstract 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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交替结合相结合的WC基合金的开发与应用

摘要 WC-Co 合金由于其优异的性能在过去几十年中具有重要的现实意义。然而，尽管有优势，但最近人们担心与使用 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，目前的研究适用于总结不同粘合剂部分或全部替代传统钴粘合剂的影响的当前知识，突出了金属、金属间化合物、陶瓷（金属氧化物）粘合剂对烧结行为和机械性能的影响WC基合金，以期为那些想提高硬质合金的性能和可靠性，推动其进一步广泛应用，以环保、对人体健康无害、生产成本低的方式制备合金提供参考。得出的结论是，在碳化钨硬质合金中替代钴在经济和技术上是可行的。严格控制粘合剂的化学成分，并仔细考虑烧结过程和后续处理的影响，对于改善碳化钨基硬质合金的烧结行为和定制机械性能非常重要。得出的结论是，在碳化钨硬质合金中替代钴在经济和技术上是可行的。严格控制粘结剂的化学成分，并仔细考虑烧结过程和后续处理的影响，对于改善碳化钨基硬质合金的烧结行为和定制机械性能非常重要。得出的结论是，在碳化钨硬质合金中替代钴在经济和技术上是可行的。严格控制粘合剂的化学成分，并仔细考虑烧结过程和后续处理的影响，对于改善碳化钨基硬质合金的烧结行为和定制机械性能非常重要。