Mathematical analysis and its experimental comparisons for the accumulative roll bonding(ARB)process with different superimposed layers

作     者：Haipeng Zheng Ruizhi Wu Legan Hou Jinghuai Zhang Milin Zhang 

作者机构：Key Laboratory of Superlight Materials and Surface TechnologyMinistry of EducationHarbin Engineering UniversityNo.145 Nantong Street Nangang DistrictHarbin 150001China College of ScienceHeihe UniversityHeihe 164300PR China 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2021年第9卷第5期

页      面：1761-1772页

核心收录：

学科分类：080503[工学-材料加工工程] 07[理学] 0806[工学-冶金工程] 08[工学] 070104[理学-应用数学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：supported by Natural Science Foundation of China(51771060,51871068,51971071,52011530025) Domain Foundation of Equipment Advance Research of 13th Five-year Plan(61409220118) the Fundamental Research Funds for the Central Universities(3072020CFT1006) 

主　　题：ARB Mathematical relationship Equivalent strain Strengthening mechanism 

摘      要：Based on the traditional two-layer accumulative roll bonding(TARB),the geometrical variations and mathematical relationship during the four-layer accumulative roll bonding(FARB)were derived and ***,the multi-layer accumulative roll bonding(MARB)technology was proposed and the geometrical variations and mathematical relationship of MARB were simultaneously derived and ***,Mg-14Li-3Al-2Gd(LAGd1432)sheets were fabricated by TARB and FARB,*** with the TARB,the FARB has a higher accumulative efficiency in terms of accumulative layers,total number of interfaces,interface spacing,total deformation and equivalent ***,the FARB-processed sheets in lower cycles have the similar microstructure and mechanical properties of the TARB-processed sheets in higher *** addition,FARB process can further break through the deformation limit of TARB process in a single cycle through adopting two-step rolling in one cycle with 50%deformation in one pass and 75%accumulative deformation in one cycle,which can effectively solve the problem of poor interface bonding of the latest interface brought by the last cycle,and thus significantly improve the phenomenon of unstable performance of the ARB-processed sheets.