Recent changes in the design of steam turbine power plant have necessitated the replacement of bolted flanges with welded joints. The design process therefore requires a knowledge of the creep rupture strength of the weld metal consumed in the welding process. This paper presents a method which can be used to estimate the creep rupture strength of ferritic steel weld metals, from a knowledge of the creep strength of wrought plates. The method is validated using published data.
Get full access to this article
View all access options for this article.
References
1.
SheardA. G. and RaineM. J.: Proc. Conf. ‘International joint power generation’, 701–712; 1998, New York, ASME.
2.
ListmannR.: IMechE Seminar S502, ‘Efficient, flexible and economic power generation – the advanced combined cycle technology’, Proc. CCGT IV: ‘The next generation’, April 1997, IMechE.
3.
MasonR. N. and SheardA. G.: Proc. 5th ‘Engineering for profit from waste’ Conf., 39–53; 1997, IMechE.
4.
BhadeshiaH. K. D. H.: Proc. 5th Int. Conf. on Trends in Welding Research, (ed. J. M. Vitek et al.), 795–804; 1999, Materials Park, OH, ASM International.
5.
LundinC. D., KelleyS. C., MenonR., and KruseB. J.: Weld. Res. Counc. Bull., 1986, 277, 1–66.
6.
National Research Institute for Metals: NRIM Creep Data Sheets, 1991, 36A; 1986, 3B; 1994, 13B; 1979, 10A; 1981, 19A; 1998, 46; 1998, 10B; 1996, 43; 1997, 19B; 1997, 44; 1992, 12B;1994, 21B; 1994, 31B; 1990, 35A; 1997, 11B; 1994, 20B; 1976, 2A; 1996, 1B; 1990, 9B.
7.
MasuyamaF. and OhgamiM.: Proc. Conf. JIMIS-7, Nagoya, Japan, 1993, 325–332.
8.
AbeF. and NakazawaS.: Metall. Trans. A, 1992, 23A, 3025–3034.
9.
SkleničkaV., k. kuchařova, a. dloughý, and j. krejčí: in ‘Materials for advanced power engineering’, (ed. D. Coutsouradis), Part I, 435–444; 1994, Dordrecht, Kluwer Academic Publishers.
10.
MasuyamaF. and YokoyamaT.: ‘Materials for advanced power engineering’, (ed. D. Coutsouradis), Part I, 301–308; 1994, Dordrecht, Kluwer Academic Publishers.
11.
KunzL., LukašP., and SkleničkaV.: in ‘Materials for advanced power engineering’, (ed. D. Coutsouradis), Part I, 445–452; 1994, Dordrecht, Kluwer Academic Publishers.
12.
FujitaT.: in ‘New steels for advanced plant up to 620°C’, (ed. E. Metcalfe), 190–200; 1995, Palo Alto, CA, EPRI.
13.
GreenwellB. S. and TaylorJ. W.: Proc. IMechE Conf. C386/041, 1990, 283–296.
14.
HaldJ.: in ‘New steels for advanced plant up to 620°C’, (ed. E. Metcalfe), 152–173; 1995, Palo Alto, CA, EPRI.
15.
HoneymanG. A.: in ‘New steels for advanced plant up to 620°C’, (ed. E. Metcalfe), 70–83; 1995, Palo Alto, CA, EPRI.
GrobnerP. J. and HagelW. C.: Metall. Trans. A, 1980, 11A, 633–642.
18.
NaoiH., MimuraH., OhgamiM., MorimotoH., TanakaT., YazakiY., and FujitaT.: in ‘New steels for advanced plant up to 620°C’, (ed. E. Metcalfe), 8–29; 1995, Palo Alto, CA, EPRI.
19.
MorinagaM., HashizumeR., and MurataY.: in ‘Materials for advanced power engineering’, (ed. D. Coutsouradis), Part I, 319–328; 1994, Dordrecht, Kluwer Academic Publishers.
20.
SikkaV. K., CowgillM. G., and RobertsB. W.: Proc. Topical Conf. on ‘Ferritic alloys for use in nuclear technologies’, 413–423; 1984, Warrendale, PA, TMS–AIME.
21.
ShawM. L., CoxT. B., and LeslieW. C.: J. Mater. Energy Syst., 1987, 8, 347–355.
OrrJ. and BurtonD.: in ‘Materials for advanced power engineering’, (ed. D. Coutsouradis), Part I, 263–280; 1994, Dordrecht, Kluwer Academic Publishers.
28.
Internal report, Nippon Kokan KK, Tokyo, 1987.
29.
FujitaT., AsakuraK., SawadaT., TakamatsuT., and OtoguroY.: Metall. Trans. A, 1981, 12A, 1071–1079.
30.
FujitaT. and TakahashiN.: Trans. ISIJ, 1979, 18, 269–278.
31.
HizumeA., TakedaY., YokotaH., TakanoY., SuzukiA., KinoshitaS., KohnoM., and TsuchiyamaT.: in ‘Advanced materials technology ’87’, (ed. R. Carson et al.), 143–151; 1987, Covina, CA, SAMPE Publishers.
32.
KuwabaraK., NittaA., OgataT., and SugaiS.: in ‘Advanced materials technology ’87’, (ed. R. Carson et al.), 153–162; 1987, Covina, CA, SAMPE Publishers.
33.
HaarmannK. and KalwaG. P.: in ‘Advanced materials technology ’87’, (ed. R. Carson et al.), 267–273; 1987, Covina, CA, SAMPE Publishers.
34.
VanstoneR.: Private communication, 1999.
35.
‘Development of high strength 2 25Cr steel tube (HCM25) for boiler applications’, Sumitomo Metal Industries, Tokyo, 1993.
36.
MurataY., MorinagaM., and HashizumeR.: in ‘Advances in turbine materials, design and manufacturing’, Proc. 4th Int. Charles Parsons Turbine Conf., (ed. A. Strang et al.), 270–282; 1997, London, The Institute of Materials.
37.
‘Procedures to determine maximum allowable stress values for NF616 ferritic steel’, Nippon Steel Corp., Tokyo, 1993.
38.
‘Procedures to determine allowable stress values for HCM12A ferritic steel tubes and pipe’, Sumitomo Metal Industries and Mitsubishi Heavy Industries, Tokyo, 1992.
39.
OhgamiM., MimuraH., NaoiH., and FujitaT.: Proc. 5th Int. Conf. on Creep of Materials, Lake Buena Vista, FL, USA, May 1992, 69–73.
40.
AbeF. and NakazawaS.: Mater. Sci. Technol., 1992, 8, (12), 1063–1069.
41.
BuchananL. W., HunterA. N. R., and HoltA. V.: ‘Materials for ultra–supercritical boilers’, internal report.
KomaiN., MasuyamaF., IshiharaI., YokoyamaT., YamaderaY., OkadaH., MiyataK. and y. Sawaragi: in ‘Advanced heat resistant steel for power gereration’, (ed. R. Viswanathan and J. Nutting), 96–108; 1999, London, IoM Communications.
45.
FujitaT.: J. Iron Steel Inst. Jpn, 76, (7), 1053–1059.
46.
BrunF., YoshidaT., RobsonJ. D., NarayanV., BhadeshiaH. K. D. H., and MackayD. J. C.: Mater. Sci. Technol., 1999, 15, (5), 547–554.
47.
MackayD. J. C.: in ‘Mathematical modelling of weld phenomena 3’, (ed. H. Cerjak), 359–389; 1997, London, The Institute of Materials.
48.
RobsonJ. D. and BhadeshiaH. K. D. H.: Calphad, 1996, 20, 447–460.
49.
‘MTDATA: metallurgical thermochemistry and thermodynamics database’, National Physical Laboratory, Teddington, 1996.
