Failure behavior of heat-affected zones within HSLA-100 and HY-100 steel weldments

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 32 - Trang 2229-2237 - 2001
D. Chae1, C. J. Young2, D. M. Goto3, D. A. Koss4
1Stainless Steel Research Group, Technical Research Laboratories, Pohang Iron & Steel Co., Ltd., Pohang, Kyungbuk, Republic of Korea
2at 6701 King Court, Woodbridge
3Lawrence Livermore National Laboratory, Livermore
4the Department of Materials Science and Engineering, The Pennsylvania State University, University Park

Tóm tắt

The deformation and fracture behavior of simulated heat-affected zones (HAZ) within HSLA-100 and HY-100 steel weldments has been studied as a function of stress state using notched and unnotched axisymmetric tensile specimens. For the case of the HSLA-100 steel, the results for fine-grained, as well as coarse-grain HAZ (CGHAZ) material, show that, despite large differences in the deformation behavior when compared to base plate or weld metal, the failure strains are only weakly dependent on the thermal history or microstructure. Ductile microvoid fracture dominates the failure of the HSLA-100 steel with small losses of ductility occurring in the HAZ conditions only at high stress triaxialities. In contrast, the HY-100 steel is susceptible to a large loss of ductility over all of the stress states when subjected to a severe, single-pass simulation of a CGHAZ. The ductility loss is greatest at the high stress triaxiality ratio in which case failure initiation occurs by a combination of localized cleavage and ductile microvoid fracture.

Tài liệu tham khảo

T.W. Montemarano, B.P. Sack, J.P. Gudas, M.G. Vassilaros, and H.H. Vanderveldt: J. Ship Production, 1986, vol. 2, pp. 145–62.

P. Deb, K.D. Challenger, and A.E. Therrien: Metall. Trans. A, 1987, vol. 18A, pp. 987–99.

M.R. Krishnadev, J.T. McGrath, J.T. Bowker, and S. Dionne: Welding Metallurgy of Structural Steels, TMS, Warrendale, PA, 1987, pp. 137–55.

M.R. Krishnadev, J.T. Bowker, J.T. McGrath, V.K. Vasudevan, and K.D. Challenger: in Recent Trends in Welding Science and Technology, ASM INTERNATIONAL, Materials Park, OH, 1990, pp. 799–803.

E.J. Czyryca, E.J. Link, R.E. Wong, R.J. Aylor, T.W. Montemarano, and J.P. Gudas: Nav. Eng. J., 1990, May, pp. 63–91.

E.J. Czyryca: in Metallurgy of Vacuum-Degassed Steel Prducts, R. Pradham, ed., TMS, Warrendale, PA, 1990, pp. 469–85.

M.R. Krishnadev, W.L. Zhang, and J.T. Bowker: Int. Symp. on Low-Carbon Steels for the 90’s, TMS, Warrendale, PA, 1993, pp. 501–09.

E.J. Czyryca: Key Eng. Mater., 1993, vols. 84–85, pp. 491–520.

D.M. Norris, J.E. Reaugh, B. Moran, and D.F. Quinones: J. Eng. Mater. Technol., 1978, vol. 100, pp. 279–86.

A. Pineau: Proc. 5th Int. Conf. on Fracture, D. Francois, ed., Pergamon Press, 1981, vol. 2, pp. 533–77.

F.M. Beremin: Metall. Trans. A, 1983, vol. 14A, pp. 2277–87.

G. Rousselier: Nucl. Eng. Des., 1987, vol. 105, pp. 97–111.

J. LeMaitre: Eng. Fract. Mech., 1986, vol. 25, pp. 523–37.

J.W. Hancock and A.C. MacKenzie: J. Mech. Phys. Solids, 1976, vol. 24, pp. 147–69.

A.D. MacKenzie, J.W. Hancock, and D.K. Brown: Eng. Fract. Mech., 1977, vol. 9, pp. 167–88.

J.W. Hancock and D.K. Brown: J. Mech. Phys. Solids, 1983, vol. 31, pp. 1–24.

J.W. Hancock and R.D. Thomson: Mater. Sci. Technol., 1985, vol. 1, pp. 684–90.

G.R. Johnson and W.H. Cook: Eng. Fract. Mech., 1985, vol. 21, pp. 31–48.

D.M. Goto, D. Chae, and D.A. Koss: Progress in Mechanical Behavior of Materials, Fleming Printing Co., Victoria, BC, 1999, pp. 150–55.

D.M. Goto, V. Jablokov, and D.A. Koss: Metall. Mater. Trans. A, 1999, vol. 30A, pp. 2835–42.

G. Spanos, R.W. Fonda, R.A. Vandermeer, and A. Matuszeski: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 3277–93.

A.D. Wilson: Master’s Thesis, The Pennsylvania State University, University Park, PA, 1996.

D. Goto: Ph.D. Thesis, The Pennsylvania State University, University Park, PA, 1997.

C. Young and D.A. Koss: The Pennsylvania State University, University Park, PA, unpublished research, 2000.

A.D. Wilson: in Inclusions and Their Influence on Material Behavior, ASM INTERNATIONAL, Materials Park, OH, 1989, pp. 21–34.

D. Chae, D.A. Koss, A.L. Wilson, and P.R. Howell: Metall. Mater. Trans. A, 2000, vol. 31A, pp. 995–1005.

A.B. Geltmacher and R.K. Everett: Scripta Mater., 1999, vol. 40, pp. 567–71.

D. Chae: Ph.D. Thesis, The Pennsylvania State University, University Park, PA, 1999.

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Thông tin xuất bản

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

Tập 32

2229-2237

Thông tin tác giả