摘要
镍铝青铜合金因具有较好的延展性、强度、断裂韧性及耐腐蚀性能而广泛应用于石油和天然气泵系统、航空和船舶工业应用等领域。传统铸造工艺制备的镍铝青铜具有复杂的物相组成,在严苛的服役环境中容易发生严重的腐蚀失效。近年来,增材制造技术在铜合金加工领域获得迅猛的发展,基于快速非平衡凝固特性,能够通过显微组织调控来提高铜合金的机械性能,同时有望提升其在严苛服役环境中的耐腐蚀性能。本文列举了不同增材制造技术制备的镍铝青铜合金,围绕其显微组织、力学性能以及腐蚀行为展开深入探讨,进一步对比分析了不同制备工艺参数以及热处理工艺与镍铝青铜显微组织的关联机制及其对腐蚀行为的影响规律。本文通过构建增材制造镍铝青铜制备工艺-显微组织特征-耐腐蚀性能之间的内禀关系,能够为高性能增材制造镍铝青铜的设计优化及应用提供理论基础和实践指导。
Nickel-aluminum bronze alloys are widely used in various fields such as petroleum and natural gas pump systems,aerospace industry,and ship applications due to their excellent ductility,strength,fracture toughness,and corrosion resistance.Traditional casting processes for nickel-aluminum bronze result in complex phase compositions,making them susceptible to severe corrosion failure in harsh service environments.In recent years,additive manufacturing technology has rapidly advanced in the processing of copper alloys.Leveraging the rapid non-equilibrium solidification characteristics,this technology enables microstructure control to enhance the mechanical properties of copper alloys.Additionally,it holds the potential to improve their corrosion resistance in demanding service conditions.This paper presents examples of nickel-aluminum bronze alloys prepared by different additive manufacturing technologies.A comprehensive exploration is conducted focusing on their microstructure,mechanical properties and corrosion behavior.Furthermore,a comparative analysis is performed on various processing parameters and heat treatment processes,examining their correlation with the microstructure of nickel-aluminum bronze and the resulting impact on corrosion behavior.By establishing the intrinsic relationship between additive manufacturing processes,microstructure characteristics and corrosion resistance of nickel-aluminum bronze,this paper provides a thorough theoretical foundation and practical guidance for the design optimization and application of high-performance additively manufactured nickel-aluminum bronze.
作者
刘明泽
周礼龙
左鹏程
郭朗
张泽群
何淑洁
吴俊升
张博威
LIU Mingze;ZHOU Lilong;ZUO Pengcheng;GUO Lang;ZHANG Zequn;HE Shujie;WU Junsheng;ZHANG Bowei(University of Science and Technology Beijing,Beijing 100083,China;Aerospace Engineering Equipment(Su-zhou)Co.,Ltd.,Suzhou 215104,China)
出处
《铜业工程》
CAS
2024年第1期54-66,共13页
Copper Engineering
关键词
镍铝青铜
增材制造
显微组织
腐蚀行为
热处理
nickel-aluminum bronze
additive manufacturing
microstructure
corrosion behavior
heat treatment
