Abstract
The quenching and partitioning (Q&P) heat treatment enables a higher formability of high strength martensitic steels. Therefore it is necessary to have some metastable austenite in the microstructure, which transforms in martensite during plastic deformation (transformation induced plasticity - TRIP effect). This microstructure can be achieved by the two-step heat treatment, consisting of quenching in a way, which retains a certain amount of austenite. A subsequent low temperature annealing, the so called partitioning, stabilizes the retained austenite due to carbon diffusion. The Q&P heat treatment was investigated for the martensitic stainless steel 1.4034 (X46Cr13, AISI 420) concerning the influence of varying austenite fractions. In line with these efforts the characterization of the mechanical properties, focusing on the materials behavior under different mechanical load scenarios, were performed. Therefore quasi static tension and compression tests were carried out. Moreover, a comprehensive analysis of the microstructural evolution was performed for different stages of heat treatment, including optical microscopy and electron backscatter diffraction. The comparison of common quenching and tempering with the Q&P heat treatment verifies the extensively enhanced materials strength with good ductility whereat the formability is still acceptable. The microstructural explanation was an higher austenite fraction due to austenite retaining between the martensite laths besides the stabilizing of retained austenite. Further a strength differential effect was observed to be much higher than known for tempered martensite. Our investigations show first results and cannot clearly demonstrate the complex microstructural mechanism. Furthermore we find some interesting differences in the micromechanical behavior compared to the literature with regard to micro-cracking and no TRIP effect under compressive loading.
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References
Dieck S, Ecke M, Rosemann P, Halle T (2017) Reversed austenite for enhancing ductility of martensitic stainless steel. In: Stebner AP, Olson GB (eds) Proceedings of the International Conference on Martensitic Transformations (Chicago), Springer, Cham, The Minerals, Metals & Materials Series, vol 181, p 012034, https://doi.org/10.1007/978-3-319-76968-4_19
Edmonds DV, He K, Rizzo FC, Cooman BCD, Matlock DK, Speer JG (2006) Quenching and partitioning martensite—a novel steel heat treatment. Materials Science and Engineering: A 438-440:25 – 34, https://doi.org/10.1016/j.msea.2006.02.133, proceedings of the International Conference on Martensitic Transformations
Ellermann A, Scholtes B (2015) The strength differential effect in different heat treatment conditions of the steels 42crmos4 and 100cr6. Materials Science and Engineering: A 620:262 – 272, https://doi.org/10.1016/j.msea.2014.10.027
Hirth JP, Cohen M (1970) On the strength-differential phenomenon in hardened steel. Metallurgical Transactions 1(1):3–8, https://doi.org/10.1007/bf02819235
Isfahany AN, Saghafian H, Borhani G (2011) The effect of heat treatment on mechanical properties and corrosion behavior of AISI420 martensitic stainless steel. Journal of Alloys and Compounds 509(9):3931–3936, https://doi.org/10.1016/j.jallcom.2010.12.174
Lu SY, Yao KF, Chen YB, Wang MH, Chen N, Ge XY (2016) Effect of quenching and partitioning on the microstructure evolution and electrochemical properties of a martensitic stainless steel. Corrosion Science 103:95 – 104, https://doi.org/10.1016/j.corsci.2015.11.010
Rauch GC, Leslie WC (2000) The extent and nature of the strength-differential effect in steels. Metallurgical and Materials Transactions B 3(2):377 – 385, https://doi.org/10.1007/bf02642041
Santofima MJ, Zhao L, Sietsma J (2011) Overview of mechanisms Involved During the Quenching and Partitioning Process in Steels. Metallurgical and Materials Transactions A 42:3620–3627, https://doi.org/10.1007/s11661-011-0706-z
Sing AP, Padmanabhan KA, Pandey GN, Murty GMD, Jha S (2000) Strength differential effect in four commercial steels6. Journal of Materials Science 35:1379 – 1388, https://doi.org/10.1023/a:1004738326505
Speer JG, Assunção FCR, Matlock DK, Edmonds DV (2005) The “quenching and partitioning” process: background and recent progress. Materials Research 8:417 – 423, https://doi.org/10.1590/s1516-14392005000400010
Tsuchiyama T, Tobata J, Tao T, Nakada N, Takaki S (2012) Quenching and partitioning treatment of a low-carbon martensitic stainless steel. Materials Science and Engineering: A 532:585 – 592, https://doi.org/10.1016/j.msea.2011.10.125
Wang L, Speer JG (2013) Quenching and partitioning steel heat treatment. Metallography, Microstructure, and Analysis 2(4):268–281, https://doi.org/10.1007/s13632-013-0082-8
Weiß A, Gutte H, Jahn A, Scheller P (2009) Nichtrostende stähle mit trip/twip/sbipeffekt. Materialwissenschaft und Werkstofftechnik 40(8):606–611, https://doi.org/10.1002/mawe.200800361
Yuan L, Ponge D,Wittig J, Choi P, Jiménez JA, Raabe D (2012) Nanoscale austenite reversion through partitioning, segregation and kinetic freezing: Example of a ductile 2gpa fe–cr–c steel. Acta Materialia 60(6):2790 – 2804, https://doi.org/10.1016/j.actamat.2012.01.045
Zhang K, Liu P, Li W, Guo Z, Rong Y (2014) Ultrahigh strength-ductility steel treated by a novel quenching–partitioning–tempering process. Materials Science and Engineering: A 619:205 – 211, https://doi.org/10.1016/j.msea.2014.09.100
Acknowledgements
The authors would like to acknowledge financial support by theGKMM1554 and the MDZWP e.V. Furthermore we like to thank the German Research Foundation and federal state Saxony-Anhalt for large equipment founding.
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Dieck, S., Ecke, M., Rosemann, P., Fritsch, S., Wagner, M.FX., Halle, T. (2020). Strength Differential Effect in Martensitic Stainless Steel Under Quenching and Partitioning Heat Treatment Condition. In: Altenbach, H., Brünig, M., Kowalewski, Z. (eds) Plasticity, Damage and Fracture in Advanced Materials . Advanced Structured Materials, vol 121. Springer, Cham. https://doi.org/10.1007/978-3-030-34851-9_3
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