Nickel-Copper (Ni-Cu) alloys exhibit simultaneously high strength and toughness, excellent corrosion resistance, and may show good wear resistance. Therefore, they are widely used in the chemical, oil, and marine industries for manufacturing of various components of equipment, such as: drill collars, pumps, valves, impellers, fixtures, pipes, and, particularly, propeller shafts of marine vessels. Processing technology includes bar forging, plate and tube rolling, wire drawing followed by heat treatment (for certain alloy compositions). Growing demand for properties improvement at a reduced cost initiate developments of new alloy chemistries and processing technologies, which require a revision of the microstructure-properties relationship. This work is dedicate to analysis of publicly available data for the microstructure, mechanical properties and strengthening mechanisms in Ni-Cu alloys. The effects of composition (Ti, Al, Mn, Cr, Mo, Co contents) and heat treatment on grain refinement, solid solution, precipitation strengthening, and work hardening are discussed.

中文翻译：

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镍铜合金的强化机理：综述

镍铜（Ni-Cu）合金同时显示出高强度和韧性，优异的耐腐蚀性，并且可能显示出良好的耐磨性。因此，它们广泛用于化学，石油和海洋工业中，用于制造设备的各种组件，例如：钻collar，泵，阀门，叶轮，固定装置，管道，尤其是船舶的传动轴。加工技术包括棒料锻造，板轧和管轧，拉丝后热处理（对于某些合金成分）。以降低的成本对性能改进的需求不断增长，引发了新合金化学和加工技术的发展，这要求对微观结构-性能关系进行修订。这项工作致力于分析微观结构的公开数据，镍铜合金的力学性能和强化机理。讨论了成分（Ti，Al，Mn，Cr，Mo，Co含量）和热处理对晶粒细化，固溶，析出强化和加工硬化的影响。