Effect of Equal Channel Angular Pressing Pass on Microstructure and Mechanical Properties of Pure Tin

CHENG Sang; ZHANG Yonghao; YANG Chuan; WANG Bingshu; ZHOU Baoxue

doi:DOI: 10.11973/jxgccl202303002

Materials and Mechanical Engineering > 2023 > 47(3): 7-11,18. > DOI: DOI: 10.11973/jxgccl202303002

CHENG Sang, ZHANG Yonghao, YANG Chuan, WANG Bingshu, ZHOU Baoxue. Effect of Equal Channel Angular Pressing Pass on Microstructure and Mechanical Properties of Pure Tin[J]. Materials and Mechanical Engineering, 2023, 47(3): 7-11,18. DOI: DOI: 10.11973/jxgccl202303002

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Effect of Equal Channel Angular Pressing Pass on Microstructure and Mechanical Properties of Pure Tin

1. Institute of Mechanical Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621999, China;
2. College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China

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Received Date: September 21, 2021
Revised Date: December 08, 2022

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Abstract

The forged pure tin plate with purity of 99.99% was treated by equal channel angular pressing (ECAP) for different passes (0-20 passes) at room temperature. The effect of ECAP pass on the microstructure and mechanical properties of the pure tin was studied. The results show that under the severe shear of ECAP, twinning and twin-induced recrystallization occurred in pure tin grains, and the grains were significantly refined. After ECAP for more than 12 passes, the grain refinement effect was weakened. With increasing ECAP pass, the texture strength and maximum orientation density of the pure tin decreased, while the hardness, strength and percentage elongation after fracture increased. Compared with those of the forged pure tin, the hardness, yield strength, tensile strength and percentage elongation after fracture after 20 passes of ECAP increased by 9.09%, 5.14%, 32.08% and 144.19%, respectively. The main strengthening mechanism of the pure tin was work hardening with ECAP pass of less than 8, and was fine grain strengthening with ECAP pass of more than 8.
- equal channel angular pressing,
- pure tin,
- grain refinement,
- mechanical property

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[1]	余克章.锡(Sn):金属在现代军事上的应用(十四)[J].金属世界,1996(3):18-19. YU K Z.Application of tin (Sn):Metal in modern military (ⅩⅣ)[J].Metal World,1996(3):18-19.
[2]	胡赓祥,蔡珣,戎咏华.材料科学基础[M].3版.上海:上海交通大学出版社,2010. HU G X,CAI X,RONG Y H.Fundamentals of materials science[M].3rd ed.Shanghai:Shanghai Jiao Tong University Press,2010.
[3]	CHEN D X,KONG J,GUI Z Z,et al.High-temperature superplastic behavior and ECAP deformation mechanism of two-phase Mg-Li alloy[J].Materials Letters,2021,301:130358.
[4]	刘敬勇,卢磊,钟政烨.高应变速率下等径角挤压高纯粗晶铝中的形变孪晶与退火孪晶[J].材料工程,2021,49(4):89-94. LIU J Y,LU L,ZHONG Z Y.Deformation twins and annealing twins in high purity coarse-grained aluminum by equal channel angular pressing at high strain rate[J].Journal of Materials Engineering,2021,49(4):89-94.
[5]	温石坤. 等径角挤压细化大尺寸铝棒材晶粒尺寸的模拟与实验[D]. 南宁:广西大学, 2010. WEN S K. Simulation and experiment of grain size refinement of large-size aluminum bar by equal channel angular extrusion[D]. Nanning:Guangxi University, 2010.
[6]	刘国心,魏伟,魏坤霞.等通道变形高纯铝的显微组织与力学性能[J].机械工程材料,2008,32(6):66-69. LIU G X,WEI W,WEI K X.Microstructure and mechanical properties of high purity aluminum processed by equal channel angular pressing[J].Materials for Mechanical Engineering,2008,32(6):66-69.
[7]	刘江涛. β-Sn单晶体的拉伸变形与应力松弛行为[D]. 沈阳:中国科学院金属研究所, 2008. LIU J T. Tensile deformation and stress relaxation behavior of β-Sn single crystal[D]. Shenyang:Institute of Metals, Chinese Academy of Sciences, 2008.
[8]	李鑫,董月成,淡振华,等.等通道角挤压制备超细晶纯Ti的腐蚀性能研究[J].金属学报,2019,55(8):967-975. LI X,DONG Y C,DAN Z H,et al.Corrosion behavior of ultrafine grained pure Ti processed by equal channel angular pressing[J].Acta Metallurgica Sinica,2019,55(8):967-975.
[9]	HE F,WANG Z J,WU Q F,et al.Tuning the defects in face centered cubic high entropy alloy via temperature-dependent stacking fault energy[J].Scripta Materialia,2018,155:134-138.
[10]	WEI Y J,LI Y Q,ZHU L C,et al.Evading the strength-ductility trade-off dilemma in steel through gradient hierarchical nanotwins[J].Nature Communications,2014,5:3580.
[11]	潘瑜,张殿涛,谭雨宁,等.等通道挤压制备医用超细晶Mg-3Sn-0.5Mn合金及其力学性能[J].金属学报,2017,53(10):1357-1363. PAN Y,ZHANG D T,TAN Y N,et al.Mechanical properties of biomedical ultrafine grained Mg-3Sn-0.5Mn alloy processed by equal-channel angular pressing[J].Acta Metallurgica Sinica,2017,53(10):1357-1363.
[12]	郭廷彪.ECAP制备超细晶铜的组织演变、织构特征及力学性能研究[D].兰州:兰州理工大学,2010. GUO T B.The study on microstructure evolution,texture characteristic and mechanical property based on equal channel angle pressing[D].Lanzhou:Lanzhou University of Technology,2010.
[13]	VALIEV R Z,LANGDON T G.Principles of equal-channel angular pressing as a processing tool for grain refinement[J].Progress in Materials Science,2006,51(7):881-981.
[14]	秦洪.多晶纯钛室温下不同应变速率塑性变形的孪生形变机制研究[D].重庆:重庆大学,2014. QIN H.Research of twinning mechanism for polycrystal pure titanium deformed at room temperature at various strain rates[D].Chongqing:Chongqing University,2014.[15] 葛佳琪,杨文朋,王诗蒙,等.镁合金等通道转角挤压的研究进展[J].热加工工艺,2020,49(1):6-9. GE J Q,YANG W P,WANG S M,et al.Research progress on equal channel angular pressing of magnesium alloys[J].Hot Working Technology,2020,49(1):6-9. [16] 杨平.电子背散射衍射技术及其应用[M].北京:冶金工业出版社,2007. YANG P.Electron backscatter diffraction technology and its application [M]. Beijing:Metallurgical Industry Press,2007.

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