公开(公告)号：US20240200167A1

公开(公告)日：2024-06-20

申请号：US18287188

申请日：2021-06-03

Applicant: Jiangsu University

Inventor： Yutao ZHAO ,  Xizhou KAI ,  Gang CHEN ,  Yanjie PENG ,  Ran TAO ,  Xiangfeng LIANG

IPC: C22C1/10 ,  B22D11/00 ,  B22D11/06 ,  B22D11/115 ,  C22C21/00 ,  C22C21/02

CPC classification number: C22C1/1052 ,  B22D11/003 ,  B22D11/0622 ,  B22D11/115 ,  C22C21/00 ,  C22C21/02

Abstract: An AMC, and in particular to an AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station and a preparation method thereof. A strip of the AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station can be prepared by an electromagnetically and ultrasonically-controlled twin-roll continuous casting device developed and designed based on chemical composition designing, in-situ nanoparticle strengthening and refinement, and REM microalloying. The composite strip prepared by this technology has fine grains, nano-REM precipitated phases in grains, and in-situ nano-ceramic particles with high thermal conductivity at grain boundaries, which significantly improves strength, toughness, and thermal conductivity of the alloy at room temperature, and increases a grain boundary content and effectively improves roll cold weldability of the alloy strip since the alloy composition design with a low melting point and the significant grain refinement.

公开(公告)号：US20240200166A1

公开(公告)日：2024-06-20

申请号：US18287187

申请日：2021-06-03

Applicant: Jiangsu University

Inventor： Xizhou KAI ,  Yutao ZHAO ,  Yanjie PENG ,  Gang CHEN ,  Ruikun CHEN ,  Lin WU ,  Ran TAO ,  Xiangfeng LIANG

IPC: C22C1/10 ,  B22D11/00 ,  B22D11/114 ,  C22C21/00 ,  C22C21/10 ,  C22F1/00 ,  C22F1/053

CPC classification number: C22C1/1052 ,  B22D11/003 ,  B22D11/114 ,  C22C21/003 ,  C22C21/10 ,  C22F1/002 ,  C22F1/053

Abstract: The present disclosure relates to an aluminum alloy material, and specifically to a weldable in-situ nano-strengthened rare-earth metal (REM)-containing aluminum alloy with high strength and toughness and a preparation method thereof. In the present disclosure, in-situ nano-ceramic particles and REMs simultaneously introduced into an Al—Zn—Mg alloy can effectively refine the grains and significantly improve the strength and toughness of the alloy; and REM-containing nano-precipitated phases and in-situ nanoparticles distributed in the grains or at grain boundaries can also significantly increase a recrystallization temperature of the alloy, effectively inhibit the dynamic recovery, reduce the re-dissolution of alloying elements, and improve the weldability of the alloy.