METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
Research on Monotonic Tension Deformation and Fracture Behavior of the High Manganese Hadfield Steel |
XIAO Gang1,2,3, BU Xiaobing4, YANG Qinwen1, YANG Xujing1, FENG Jianghua2
|
1 State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082 2 CRRC Zhuzhou Institute Co., Ltd, Zhuzhou 412001 3 Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material, Hunan University of Science and Technology, Xiangtan 411201 4 China Automotive Technology & Research Center Co., Ltd, Tianjin 300300 |
|
|
Abstract The monotonic tensile test of the high manganese Hadfield steel has been investigated at various strain rates of 6×10-3 s-1, 6×10-4 s-1, 3×10-5 s-1and 6×10-6 s-1. The deformation behavior and the crack initiation and propagation phenomenon of the steel have been analysed. The results illustrate that the studied alloy shows dynamic strain aging under all the selected strain rates. The ductility exhibits a positive strain rate sensitivity. A mass of dislocations and stacking faults are generated in the austenite grain after deformation, together with the generation of parallel tiny deformation twins. The strain hardening rate experiences three stages of “decrease—increase—decrease”, in which the second stage attributes to the continuous produce of deformation twins. The high density slip band perpendicular to the tension direction is beneficial for the initiation of crack. The crack is propagated in the transgranular form, together with propagation along twin form. The competition between gliding and twinning is the main deformation mechanism of the tested steel.
|
Published: 16 September 2019
|
|
Fund:This work was financially supported by China Postdoctoral Science Foundation (2019M652755), the Natural Science Foundation of Hunan Province (2018JJ3178), the Opening Foundation of Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material (E21751), PhD Research Startup Foundation of Hunan University of Science and Technology (E51783). |
About author:: Gang Xiaoreceived his Ph.D. degree in mechanical engineering from Hunan University in 2016, and he is working in Hunan University of Science and Technology as a senior engineer. Since October of 2017, he works part-time in the postdoctoral program supported by both CRRC Zhuzhou Institute Co., LTD. and Hunan University. His research interests are material plastic for-ming, additive/subtractive manufacturing technology, and structural optimization and manufacturing of fuel cell key parts. He has published more than 40 papers and applied more than 20 national invention patents. Qinwen Yangreceived her Ph.D. degree in mechanical engineering from the University of Calgary in 2013. She is currently an associate professor in College of Mechanical and Vehicle Engineering, Hunan University. Her research interests are design and control of fuel cell systems, and process design and control of metal plastic forming. She has published 16 SCI papers and applied 6 national invention patents. |
|
|
[1] |
Allain S, Chateau J P, Bouaziz O. Materials Science & Engineering A, 2004, 387(1), 143.
|
[2] |
Zhang F. Journal of Yanshan University, 2010, 34(3), 189(in Chinese).张福成. 燕山大学学报, 2010, 34(3), 189.
|
[3] |
Park K T, Jin K G, Sang H H, et al. Materials Science & Engineering A, 2010, 527(16), 3651.
|
[4] |
Zhang F, He C, Zhou D. Journal of Hunan University (Natural Scie-nces), 2016, 43(12), 11. (in Chinese)张福全, 何翠, 周惦武. 湖南大学学报(自然科学版), 2016, 43(12), 11.
|
[5] |
Bal B. International Journal of Steel Structures, 2018, 18(1), 13.
|
[6] |
Owen W S, Grujicic M. Acta Materialia, 1998, 47(1), 111.
|
[7] |
Lindroos M, Laukkanen A, Cailletaud G, et al. Wear, 2018, s396-397, 56.
|
[8] |
Korshunov L G, Chernenko N L. Physics of Metals & Metallography, 2018, 119(7), 700.
|
[9] |
Qian L, Feng X, Zhang F. Materials Transactions, 2011, 52, 1623.
|
[10] |
Zhang M, Lv B, Zhang F, et al. Transactions of the Iron & Steel Institute of Japan, 2012, 52(11), 2093.
|
[11] |
Liu F C, Yang Z N, Zheng C L, et al. Scripta Materialia, 2012, 66(7), 431.
|
[12] |
Karjalainen L P, Hamada A, Misra R D K, et al. Scripta Materialia, 2012, 66(12), 1034.
|
[13] |
Qian L, Guo P, Meng J, et al. Journal of Materials Science, 2013, 48(4), 1669.
|
[14] |
Guo P, Qian L, Meng J, et al. Acta Metallurgica Sinica, 2014, 50(4), 415(in Chinese).郭鹏程, 钱立和, 孟江英, 等. 金属学报, 2014, 50(4), 415.
|
[15] |
Mccormigk P G. Acta Metallurgica, 1972, 20(3), 351.
|
[16] |
Chen C, Lv B, Wang F, et al. Materials Science & Engineering A, 2017, 695, 144.
|
[17] |
Gnyusov S F, Rotshtein V P, Mayer A E, et al. Journal of Alloys & Compounds, 2017, 714, 232.
|
[18] |
Kalidindi S R. International Journal of Plasticity, 1998, 14(12), 1265.
|
[19] |
Allain S, Chateau J P, Dahmoun D, et al. Materials Science & Enginee-ring A, 2004, 387(1), 272.
|
[20] |
Kang J, Zhang F C. Materials Science & Engineering A, 2012, 558, 623.
|
|
|
|