首页|Effects of hot deformation and in-situ ZrB2 particle on microstructure and tensile performance of AA7085 composite sheets

Effects of hot deformation and in-situ ZrB2 particle on microstructure and tensile performance of AA7085 composite sheets

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
To provide a new idea to reduce anisotropy for sheets in the thickness direction by microstructure modification and,mean-while,maintain or even enhance tensile performance,the in-situ ZrB2 particle/AA7085 composite sheets with thicknesses of 1,2,3,and 6 mm were investigated.The as-cast grain size was significantly refined by the heterogeneous nucleus of the ZrB2 particle.The microstructure results show that severe hot deformation converts as-cast disordered microstructure into a sequential microstructure by crushing the remanent phases and matrix into a fiber structure.After the solid solution and aging heat treatment,the composite sheets exhibit largely recrystallized grains compared with partially recrystallized grains in the matrix sheets,and weak or even free texture exists in the composite.The grain size in the composite sheets decreases with the increase in thickness reductions.For the thickness range of 1-3 mm,the composite sheets maintain a similar tensile per-formance as that in matrix sheets,while the strength and ductility in the 6-mm-thick composite sheet are improved.

Composite sheetGrain structureTextureDislocationStrengthening

Jiang-jing Wu、Xi-zhou Kai、Chuang Guan、Yu-tao Zhao

展开 >

School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaSix Talents Peak Project of Jiangsu ProvinceOpen Funds of SKLMMC of SJTUJiangsu Provincial Key Laboratory of High-End Structural MaterialsJiangsu Provincial Key Laboratory of High-End Structural Materials

U20A202745207115851701085U16642542018-XCL-202MMC-KF18-16HSM18031902

2024

10.1007/s42243-023-01106-0

钢铁研究学报(英文版)
钢铁研究总院

钢铁研究学报(英文版)

CSTPCD
影响因子：0.584
ISSN：1006-706X
年,卷(期)：2024.31(7)