1. C.-C. Hsieh and W. Wu, Overview of Intermetallic Sigma (σ) Phase Precipitation in Stainless Steels, ISRN Metall., 2012. https://doi.org/10.5402/2012/732471
2. A.M. Babakr, A. Al-Ahmari, K. Al-Jumayiah, and F. Habiby, Sigma Phase Formation and Embrittlement of Cast Iron-Chromium-Nickel (Fe-Cr-Ni) Alloys. J. Miner. Mater. Charact. Eng., 2008, 7(2), p 127–145
3. W.T. Becker and R.J. Shipley, Failure Analysis and Prevention, ASM Handbook, vol. 11, ASM International, Materials Park, 1996
4. M.F. Ashby, Deformation-Mechanism: Maps. Acta Metall., 1972, 20, p 887–897
5. R.A. Kumar, S.K. Sinha, Y.N. Tiwari, J. Swaminathan, G. Das, and S. Chaudhuri, Analysis of Failed Reformer Tubes. Eng. Fail. Anal., 2003, 10, p 351–358