Texture Analysis of the Hot Rolling Austenitic Cr-Ni Steel Using Neutron Diffraction Method

Article Preview

Abstract:

Synthesis of austenite stainless steel using extracted minerals from Indonesian mines has been carried out. It is namely A2 steel. The main raw material of making non standard steel A2 is granular scrap iron, nickel, iron-chromium, iron-manganese, and iron-silicon. It is obtained from non standards. A component of A2 steel consists of 15,42%Cr, 25,01%Ni, 0,32%Mn, 0,96%Si and 0,34%C with impurities of 0,039%V and 0,051%Cu. Characterization using neutron diffraction technique shows the first four Bragg peaks of (111), (200), (220) and (311). A machining process was performed to make a plat from ingot. After the machining process, intensities and FWHM of the first two Bragg peaks of (111) and (200) are quite the same. But the intensity of the peaks (220) and (311) changes. It is calculated that for (220)peak the decreasing intensity about 51.6% and increasing FWHM about 0.14%, whereas for (311) peak the intensity increase about 40.2% and the FWHM decrease about 3%. Furthermore, the material obtained from the machining process is used as a reference to the condition of the material without rolling. After being subjected to rolling up to 70% thickness reduction, crystal orientation changes from highest intensity with a sequence of (200), (111) and (220) to (220) (111) and (200) with highest increasing intensity about 2.25 times at (220). Quantitative analysis of texture after the rolling process is shown in pole figures of (111), (200) and (220). It is characterized that crystals are oriented mainly to {110} <113>, texture index is 1.0671.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

104-108

Citation:

Online since:

August 2015

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] A. Klimpel, A. Lisiecki, Laser welding of butt joints of austenitic stainless steel AISI 321, Journal of Achievments in Materials and Manufacturing Engineering, 25(1) (2007) 63-66.

Google Scholar

[2] T. Morikawa and K. Higashida, Deformation Microstructure and Texture, in a cold-rolled austenitic steel with low stacking-fault energy, Materials Transactions 51 (4) (2010) 620-624.

DOI: 10.2320/matertrans.mg200901

Google Scholar

[3] A. Kurc-Lisiecka, W.I. Ozgowicz, W. Ratuszek. Development of deformation texture of austenitic Cr-Ni steel, Scientific Proceedings of the Scientific-Technical Union of Mechanical Engineering, Year XX, Vol. 7/136, September 2012, pp.75-78.

Google Scholar

[4] K. Verbeken, L. Barbé, and D. Raabe, Evaluation of the Crystallographic Orientation relationships between FCC and BCC Phases in TRIP Steels, ISIJ International, Vol. 49(10) (2009) 1601–1609.

DOI: 10.2355/isijinternational.49.1601

Google Scholar

[5] T. Gnäupel-Herolda, A. Creuzigerc, Diffraction study of the retained austenite content in TRIP steels, Materials Science and Engineering A, 528 (2011) 3594–3600.

DOI: 10.1016/j.msea.2011.01.030

Google Scholar

[6] S. Harjo, J. Abe, K. Aizawa, W. Gong and T. Iwahashi, Deformation behaviour of an austenic steel by neutron diffraction, Proceedings of the 12th Asia Pacific Physics Conference, JPS Conf. Proc. 014017 (2014) 1-6.

DOI: 10.7566/jpscp.1.014017

Google Scholar

[7] J.W. Pang, A Neutron Diffraction Study of Intergranular Strains and Plastic Deformation, PhD thesis, 1999, pp.87-88.

Google Scholar

[8] N. Jia, R. Lin Peng, Y.D. Wang, S. Johannson, PK. Wang, Micromechanical behaviour dan Texture Evolution of duplex stainless steel studied by neutron diffraction and self-consistent modeling, Acta Materialia 56 (2008)782-793.

DOI: 10.1016/j.actamat.2007.10.040

Google Scholar

[9] Y.D. Wang, R. Lin Peng, X. -L. Wang, R.L. McGreevy. Grain-orientation-dependent residual stress and the effect of annealing in cold-rolled stainless steel, Acta Materialia 50 (2002) 1717–1734.

DOI: 10.1016/s1359-6454(02)00021-6

Google Scholar

[10] N. Efendi. Austenitic Type Stainless Steel Production By Foundry Technology, Urania, Jurnal Ilmiah Daur Bahan Bakar Nuklir, PTBN-BATAN: 16 2(2010) 69 – 77. (In Indonesian).

DOI: 10.17146/urania.2017.23.2.3280

Google Scholar