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Inconel X-750

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048158
EISBN: 978-1-62708-229-7
... Abstract Several of the springs, made of 1.1 mm diam Inconel X-750 wire and used for tightening the interstage packing ring in a high-pressure turbine, were found broken after approximately seven years of operation. Intergranular cracks about 1.3 mm in depth and oriented at an angle of 45 deg...
Image
Published: 01 June 2019
Fig. 1 Inconel X-750 spring that failed by stress-corrosion cracking. (a) Configuration and dimensions (given in inches) of the spring. (b) and (c) Unetched longitudinal sections showing intergranular cracking. 100× and 500×, respectively More
Image
Published: 30 August 2021
Fig. 17 Inconel X-750 spring that failed by stress-corrosion cracking. (a) Configuration and dimensions (given in inches) of the spring. (b) and (c) Unetched longitudinal sections showing intergranular cracking. Magnification: 100× and 500×, respectively More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091659
EISBN: 978-1-62708-229-7
..., reheat treatment, or preload reduction. Boiling water reactors Jet pumps Nuclear reactor components Inconel X-750 UNS N07750 Stress-corrosion cracking Jet pumps, which have no moving parts, provide a continuous circulation path for a major portion of the core coolant flow in a boiling...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... that corrosion fatigue was the problem because no rust could be seen and the operating stresses were insufficient to initiate fatigue. Example 10: Stress-Corrosion Cracking of Inconel X-750 Springs Background Springs such as the one shown in Fig. 17 were used to tighten the interstage packing ring...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
... to be attacked when under stress. Consequently, springs are extremely susceptible to stress-corrosion cracking. Example 17: Stress-Corrosion Cracking of Inconel X-750 Springs Springs such as that shown in Fig. 20(a) were used for tightening the interstage packing ring in a high-pressure turbine. After...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... Hastelloy X nickel-base superalloy 1205 2200 1 HX (17Cr-66Ni-bal Fe) 1150 2100 1 (a) Seamless tube. (b) Electric resistance welded tube Iron oxides alone are not protective above 550 °C (1020 °F) ( Ref 5 ). Chromium, aluminum, and/or silicon assist in forming scales, which...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... end at 95 g/s (750 lb/h), 34 to 69 kPa (5 to 10 psi), and 125 °C (260 °F). The kiln developed perforations within eight months of operation. Sulfur and chlorine in the charcoal attacked the Inconel 601, forming various sulfides and chlorides ( Fig. 7 ). The tendency is for the sulfur to attack...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... do not allow pores to float out and escape. Quantifying powder porosity is therefore essential for quality control of powder-based AM processes, and microfocus x-ray computed tomography is the important tool in evaluating powder porosity and understanding the formation mechanism of porosity in AM...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001657
EISBN: 978-1-62708-227-3
... that coating erosion in conjunction with severe hot-corrosion was responsible for crack initiation in the leading edge area. Coating erosion Marine engines Turbine blades Turbine vanes MAR-M302 Inconel 713C High-temperature corrosion and oxidation Fatigue fracture Introduction...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... metal droplets deposited on a surface at high velocity; similar structures are intentionally formed by thermal spray coating. Energy-dispersive x-ray spectroscopy analysis of the metallic portions of the deposit revealed a chemical composition consistent with that of the first-stage blade alloy IN-700...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... environments, the cast structure of a nickel weld may be anodic to the wrought parent metals. The combination of their passive surface with their inherent resistance places nickel-chromium alloys such as Inconel alloy 600 and Hastelloy alloy C-276 in more noble positions in the traditional galvanic series...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... (experimental validation using flat-on-flat interface). EDX, energy-dispersive x-ray. Adapted from Ref 68 , 69 . Reprinted with permission from Elsevier According to this concept, the adhesive wear process is activated when the available di-oxygen partial pressure in the interface falls below...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... of a nickel weld may be anodic to the wrought parent metals. The combination of their passive surface with their inherent resistance places nickel-chromium alloys such as Inconel alloy 600 and Hastelloy alloy C-276 in more noble positions in the traditional galvanic series. In chloride-bearing solutions...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... be made when care is not taken to ascertain that the alloy used complies with the alloy specified. In one case, several low-carbon steel nipples were inadvertently used in place of 5Cr-0.5Mo steel nipples in a pipeline containing hydrogen at 400 °C (750 °F). Failure occurred after approximately 4...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... understanding. It is the self-consistent data gathered over a range of magnifications that provides understanding. Additional tools and techniques also have become available, including energy dispersive x-ray spectroscopy (EDS or WDS), the Auger microscope, the variable-pressure SEM, the atomic-force...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2