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stress rupture test

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Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 259-269, October 15–18, 2024,
... and turbine rotor life, Sulzer has developed evaluation and rejuvenation processes that include microstructural assessment and stress rupture testing of specimens from service-exposed blades. While stress rupture testing presents certain limitations and challenges in evaluating material condition, Sulzer has...
Proceedings Papers

AM-EPRI2004, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Fourth International Conference, 703-712, October 25–28, 2004,
.... For a 141MW unit main steam line, the remaining life calculated according to the German Boiler Code TRD 508 was found to be almost exhausted. It was recommended to remove a pipe sample with a circumference weld for laboratory examination. Stress rupture tests were performed on three types of specimens...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 1432-1440, October 22–25, 2013,
... Abstract The current study proposed a new method that utilizes digital image correlation (DIC) techniques to measure in-situ full field strain maps of creep resistant material welds. The stress-rupture test is performed in a Gleeble thermal mechanical simulator. This technique successfully...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 939-950, October 11–14, 2016,
... in respect to the alloy additions and microstructure. The mechanical properties of the weld metals at ambient temperature are examined. Creep properties of both undiluted weld metals and cross-weld joints are examined through stress rupture test and the data are evaluated and compared with those of the base...
Proceedings Papers

AM-EPRI2007, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Fifth International Conference, 940-967, October 3–5, 2007,
... of the filler material at operating temperatures, two types of high temperature tests were carried out, hot tensile tests (ASTM E21 (7)) and short-term stress rupture tests (aiming for failure in 100 hours). All of the high temperature testing was carried out at 1100°F (593°C). This is the same temperature...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 933-948, August 31–September 3, 2010,
... strained tensile specimens was considered to be the most appropriate approach for this work. Test Programme and Validity of Creep Test Stress Levels The creep properties of the selected materials were evaluated by stress rupture testing for nominal test durations of 1000 hours and 3000 hours at a test...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 556-567, October 11–14, 2016,
... on stress rupture testing of 2CrMoL weld metal, RWE realised that this type of P91 cold weld repair would have a limited life due to the weak 2CrMoL weld metal and could only be considered as a temporary repair for a maximum of 2 years. After this initial work on P91 cold weld repairs, it was decided...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 190-201, October 11–14, 2016,
... Property The projected 100,000h stress rupture strength of alloy GH750 is more than 100MPa at 750°C. Extensive stress rupture tests were performed on tube and bar forms of the alloy to evaluate the stress rupture strength at 100,000 hours. The testing temperature range covered is from 700°C to 850°C...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1361-1372, October 21–24, 2019,
... for obtaining information about the material properties of steels and alloys when only a limited amount of test material is available that does not make it possible to perform conventional creep and/or stress rupture tests. SPCT testing can also be used for determination of the residual life of critical...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 98-119, October 22–25, 2013,
... phase in Super304H was analyzed by 3 dimensional atomic probe(3DAP) in detail. Mechanical properties of hardness, impact toughness and stress rupture lives were also tested in some investigated materials. RESULTS AND DISCUSSIONS Austenitic steels Austenitic heat-resistant steels TP347H, Super304H...
Proceedings Papers

AM-EPRI2007, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Fifth International Conference, 220-230, October 3–5, 2007,
.... Mechanical property and oxidation resistance tests compared the modified alloys with the original Inconel alloy 740, yielding preliminary results that demonstrate minimal modifications can improve stress rupture strength while maintaining corrosion resistance. Microstructural examinations further confirmed...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 161-168, October 11–14, 2016,
... for purpose of the transition joint by structural integrity assessment, additional mechanical test data, beyond the scope of ASME IX weld procedure qualification, was required. The range of mechanical testing included creep stress rupture testing (parent and cross weld), stress relaxation, cyclic stress...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 873-884, October 15–18, 2024,
... with uniaxial creep testing to quantify creep deformation rates, rupture time, some measure of creep ductility, and shape of the creep curve. Simple stress-rupture tests do not capture the essential data to properly assess heat-to-heat or material-to-material variability. Two heats of grade 91 steel...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 861-872, October 15–18, 2024,
... condition. Mechanical and Environmental Testing Subsized samples for tensile and stress rupture tests were manufactured from blanks manufactured using identical conditions as for the processability samples, in the XY and Z directions. At least three tests per test condition were conducted to mitigate...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 429-439, October 11–14, 2016,
... strength. All creep rupture test results for materials tempered within 10h exceeded the average creep strength of T91. Shorter tempering times such as 0.5h and 1h were clearly correlated with longer time to rupture at 600°C under 80MPa to 100MPa stress conditions. Reduction of area in creep-ruptured...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 693-704, August 31–September 3, 2010,
... and headers. This paper investigated microstructural evolution of P92 and 10Cr9MoW2VNbBN steel during creep and its influence on mechanical behaviors to reveal the degradation mechanism of P92 and 10Cr9MoW2VNbBN based on high temperature stress-rupture test. 1. Materials and experiment P92 steel ( 457×70mm...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 1194-1198, October 11–14, 2016,
... and 2.5mm/s respectively. A 9Cr-1Mo filler wire with 1.6mm in diameter was used. The welded plates were post-weld heat treated (PWHT) in a furnace at 760°C for 2 hours, followed by air-cooling to room temperature. The treated plates were sectioned and machined for creep tests. Stress-Rupture Test...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 283-294, October 11–14, 2016,
... of SP2215 Figure 17: Grain size and inclusion evaluation of SP2215 Figure 18: Tubing component qualification performance for flare and flattening tests MECHANICAL PROPERTIES Tensile properties and stress-rupture tests results at different temperatures are shown in Fig.19 and Fig.20 (Larson-Miller Plot). 291...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 1047-1058, October 22–25, 2013,
... impact test. To select the annealing conditions for stress relief, stress relaxation tests and hardness tests were conducted on the weld joints after various heat treatments. The microstructure was also evaluated by SEM and TEM. Creep rupture tests are being performed for the weld joints with and without...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1237-1249, October 21–24, 2019,
... of an alloy 625 to IBN-1 transverse stress rupture specimen - test temperature 650°C. (Photograph courtesy of TWI) 1241 5 IBN-1 (Transverse Weld) CB2 Castings 100 IBN-1 Castings (MPaS)tress 10 Larson Miller_ (no value for comparative purpose only) Fig.6 IBN-1 Cross weld mean stress rupture curve (hatched red...