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殷瓦合金激光增材制造研究进展

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随着中低温极端环境使役需求的增加,具有形状尺寸高度稳定特性的殷瓦合金精密器件将进一步展现其独特的重要价值.殷瓦合金激光增材制造技术有望解决中低温用复杂结构精密器件的高质量制造瓶颈.对国内外殷瓦合金激光增材制造的研究进展进行梳理总结,包括缺陷种类、缺陷形成机制、微观组织演变、制备工艺对成型构件热膨胀特性和力学性能的影响规律等,激光增材制造技术在较宽的工艺参数范围内,成功实现高致密度殷瓦合金样品的制备,且样品拥有着不亚于铸态构件的力学性能与热膨胀性能.最后概述利用激光增材制造技术制备殷瓦合金复合材料的相关研究现状,并展望殷瓦合金激光增材制造技术的发展方向.
Research Progress in Laser Additive Manufacturing of Invar Alloys
With the increase of service demand in medium and low temperature extreme environment,the high stability of shape and size of the Invar alloy precision devices will further show its unique value.The laser additive manufacturing technology of Invar alloy is expected to solve the bottleneck of high quality manufacturing of complex structure precision devices for low temperature and medium temperature.The research progress of laser additive manufacturing of Invar alloy at home and abroad is summarized in a comb,including defects types and the mechanism of defect formation,microstructure evolution,the effect of preparation technology on thermal expansion and mechanical properties of molded components.Laser additive technology has successfully realized the preparation of high density Invar alloy samples within a wide range of process parameters,and the samples have mechanical properties and thermal expansion properties that are no less than those of as-cast components,and finally summarizes the relevant research status of the preparation of Invar alloy composites using laser additive manufacturing technology.The development direction of laser additive manufacturing technology of Invar alloy is also prospected.

invar alloylaser additive manufacturingdefectsmicrostructurecoefficient of thermal expansionmechanical properties

任国鑫、崔泽琴、丁正祥、郝晓虎、王文先、李卫国

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太原理工大学材料科学与工程学院 太原 030024

山西浙大新材料与化工研究院 太原 030032

中船黄埔文冲船舶有限公司广东省舰船先进焊接技术企业重点实验室 广州 510715

太原理工大学工程训练中心 太原 030024

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殷瓦合金 激光增材制造 缺陷 显微组织 热膨胀系数 力学性能

国家自然科学基金国家自然科学基金山西省基础研究计划青年科学研究山西省重点研发计划山西浙大新材料与化工研究院技术开发

5237537052105389202103021241132021020502010092022SX-TD025

2024

10.3901/JME.2024.11.259

机械工程学报
中国机械工程学会

机械工程学报

CSTPCD北大核心
影响因子：1.362
ISSN：0577-6686
年,卷(期)：2024.60(11)