1561铝合金厚板力学性能不均匀性研究  

Study on Mechanical Properties Inhomogeneity of 1561 Aluminum Alloy Thick Plate

作　　者：王腾达 李利[1] 刘海彬 袁晓冬 张先锋[1] 王鹏云[1] WANG Tengda;LI Li;LIU Haibin;YUAN Xiaodong;ZHANG Xianfeng;WANG Pengyun(Luoyang Ship Material Research Institute,Luoyang 471023,China)

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《热加工工艺》2024年第4期75-79,共5页Hot Working Technology

基　　金：中华人民共和国科学技术部国家重点研发计划项目(2020YFB0311203,2021YFB3704205)。

摘　　要：以国产1561铝合金40 mm厚板材为研究对象,通过厚板拉伸、圆棒拉伸、布氏硬度、SEM等研究了不同批次40 mm厚1561板材的力学性能及微观组织。结果表明:当板材心部附近出现明显的析出带时,材料的塑性和强度明显下降,拉伸断口出现裂纹分层。Taking domestic 1561 aluminum alloy 40 mm thick plates as research object,the mechanical properties and microstructure of different batches of 40 mm thick 1561 plates were investigated by plate tension specimen,round bar tension specimen,cloth hardness test and scanning electron microscope.The results show that when there is an obvious precipitation zone near the core of the plate,the plasticity and strength of the material decrease obviously,and the crack delamination appears on the tensile fracture.

关 键 词：1561铝合金 厚板 力学性能 微观组织 

分 类 号：TG146.2[一般工业技术—材料科学与工程]