AZ31镁合金室温异步轧制的织构演变

1、214Vol.21No.4 20078CHINESE JOURNAL OF MATERIALS RESEARCH August 2007AZ31 1, 21111. 1100042. 110168AZ31. :AZ31, , , ., ; , . , ., , AZ31, ,TG335, TG1461005-3093(200704-0354-05 Evolution of texture of the AZ31magnesium alloy by the cross shear rolling at room temperatureQU Jiahui 1, 2ZHANG Zhenggui 1W

2、ANG Fu 1 ZUO Liang 11.School of Materials and Metallurgy, Northeastern University, Shenyang 1100042.School of Equipment Engineering, Shenyang Ligong University, Shenyang 110168*Supported by National High Technical Research and Development Program of China No.2003AA331080. Manuscript received Septemb

3、er 22, 2006; in revised form May 10, 2007.*To whom correspondence should be addressed, Tel:(02483681676,Email Wangfu neu ABSTRACT The eect of the rolling on the plastic deformation of magnesium alloy AZ31and its microorientation rheological behavior was explored by using cross shear rolling techniqu

4、e. The results show that for the magnesium alloy AZ31the touching surfaces of the texture with the highspeed roller and with the lowspeed roller are evidently quite dierent with the increasing ratio. But the middle area has no evident change. At the side of the highspeed roller, the major texture co

5、nguration increases fast with the increase of the ratio, while at the side of the lowroller it changes by turns. By increasing deformation, crystal particles can be rened and mechanical performance be improved.KEY WORDS metallic materials, cross shear rolling, AZ31magnesium alloy, texture, mismatch

6、speed ratio, 1 3., 0001, 3, . ,4, 5.6 8,9, 10.11, 12,*2003AA331080. 20069222007510. :,. 20% , ,;13 15.AZ31, . 1AZ311.4mm, ( :Al 2.5%3.5%,Zn 0.7% 1.3%,Mn 0.3%0.5%,Fe, Si <0.002%,Cu <0.002%, Ni <0.001%,Ca <0.002%,Mg. (90 mm/200mm ×200mm 1720, (MSR1.001.061.181.254:AZ313551.31.30mm 

7、15;30mm.(L(U.PANalyticalX Pert,(K =0.179nm ,35kV,40mA,Schulz(0002(1011(1012(1013,:070 , 0360 , =5 ,5mm ×5mm.LaboTex3.0(ODF.21.4mm,0117 13410001 1210 (1.=0=30,80 , 15 , 0 80 , 15 , 30 ,8.46.22=0 =02=30 =01.2,f (g 1,0001 211000011010 .,.3, ,1,0001 10100001 1210; (80 , 15 , 0 ,8.4610.9.4.5.0.0,1.0

8、, 1.0.0.0, ±0.25,±0.5, ±0.75, ±1.0.,. ,14.,.,. , ,.,10 30 60 90; 12ODFFig.1Constant 2ODF sections for a original sheet (a2=0 (b2=30 2Fig.2Orientation distributing analysis of main texture for a original sheet (a2=0 , =0 ;(b2=30 , =0356213(MSR=1.18=9.63%2ODFFig.3Constant 2ODF sect

9、ions of CSR at MSR=1.18,=9.63%(a2=0 (b2=30 4(HCP2ODFFig.4Typical orientation distributing of constant 2ODF sections forHCP 5=11.03%(1, , 2Fig.5Orientation distributing analysis through the thickness after the CSR of =11.03%(aMSR=1.18;(bMSR=1.314:AZ31357 , (80 , 15 , 0 (0 , 5 , 30 ., , ,.6MSR . , . ,

10、; , ., ,.(MSR=1.18, ( 7. , , .11. , . 6=11.03%(MSR(a(bFig.6Orientation distributing analysis of the fast roller side (aand the slow roller side (bwith the increase of MSR for =11.03% 20%, ,(8. AZ31, ,. , ,. (HCP , c/a=1.6244,(1012 71.18(Fig.7Orientation distributing analysis of the fast roller side

11、(aand the slow roller side (bwith the increase of for MSR=1.188AZ31Fig.8AZ31magnesium alloy thin sheet by CSR35821(000243.15 , , , 16.,.31.AZ31,. 2. , AZ31, .3. , AZ31;.4. , AZ31,.EPM.1Y.Kojima, Platform science and technology for advanced magnesium alloy, Mater. Sci. Forum, 350, 3(2000 2YU Kun, LI

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