The X-80 steel chemistry has been modified by increased Mn, Cr and Mo that decrease BS, and two groups of leaner base chemistries have been used with low carbon (LC) and high carbon (HC) that correspond to 0·04 and 0·07 wt-%C respectively. The alloy design approach is to lower BS and to provide offsetting decreases to the carbon equivalent Pcm and alloy mix cost. The final microstructures of plate steels, their tensile and toughness properties were obtained. The effects of alloying on the evolution of final microstructure and mechanical properties were discussed.
ShunmuganS., MisraR. D. K., HarmannJ. and JanstoS. G.: Mater. Sci. Eng. A, 2006, A441, 215–229.
2.
ShanmugamS., RamisettiN. K., MisraR. D. K., ManneringT., PandaD. and JanstoS.: Mater. Sci. Eng. A, 2006, A460-461,335–343.
3.
WangC., WuX., LiuJ. and XuN.: Mater. Sci. Eng. A, 2006, A438-440,267–271.
4.
XiaoF., LiaoB., ShanY., QiaoG., ThongY., ZhangC. and YangK.: Mater. Sci. Eng. A, 2006, A431, 41–52.
5.
ZhaoM., YangK. and ShanY.: Mater. Lett., 2003, 57, 1496–1500.
6.
FengY., CaiH. and GaoS.: Mater. J., 2002, 16, 9–12.
7.
OkatsuM., KawabataF. and AmanoK.: Proc. 16th Int. Conf. on ‘Offshore mechanics artic engineering’, Yokohama, Japan, 1997, ASME,119–124.
8.
KawabataF., OkatsuM., AmanoK. and NakanoN.: Proc. Pipeline Technol., 1995, 2, 263.
9.
YakubtsovI. A. and BoydD.: Mater. Sci. Technol, 2001, 17, 296–301.
10.
YakubtsovI. A., BoydJ. D., LiuW. J., EssadiqiE. and TuriT.: Proc. Conf. on ‘43rd MWSP’, Charlotte, NC, USA, October 2001, ISS,531–541.
11.
PickeringF. B.: Proc. Conf. on ‘Microalloying 75’, 9-31; 1977, New York, Union Carbide.
12.
StevenW. and HansenA. J.: J. Iron Steel Inst., 1956, 183, 349–359.
13.
OlsonG. B. and CohenM.: Met. Trans. A, 1976, 7A, 1905–1914.
14.
YakubtsovI. A., ZhangY., PoruksP., BoydD. and TuriT.: Proc. Conf. on ‘44th MWSP’, Orlando, FL, USA, September 2002, ISS,1175–1187.
15.
YakubtsovI. A., BoydJ. D., LiuW. J. and EssadiqiE.: Proc Conf. on ‘42 MWSP’, Toronto, Canada, October 2000, ISS,429–439.
16.
BhadeshiaH. K. D. H.: Tainite in steels’, 2nd edn, 240; 2001, London, IoM Communications.
17.
ThomasonP. F.: ‘Ductile fracture of metals’, 219; 1990, Oxford, Pergamon.
18.
RiceJ. R. and TraceyD. M.: J. Mech. Phys. Solids, 1969, 17, 201–217.
19.
BoydJ. D., PourksP. and YakubtsovI. A.: Proc. Conf. on ‘Mechanisms and mechanics of fracture: symposium in the honor of Prof. J. F. Knott’, Columbus, OH, USA, October 2002, TMS,187–191.
20.
PoruksP., YakubtsovI. A. and BoydD.: Scr. Mater., 2006, 54, 41–45.
21.
DahlW. and KretzchmannW. B.: Proc. Conf. on ‘Fracture 1977’, (ed. TaplinM. R.), Vol. 2A, 17-21; 1977, London, Pergamon.
