AMPP Store - Products tagged with 'carburization'

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02382 Update on an Information System for High Temperature Corrosion

Product Number: 51300-02382-SG

ISBN: 02382 2002 CP

Author: R. C. John, A. D. Pelton, A. L. Young, W. T. Thompson, I. G. Wright and T. M. Besmann, and M. A. Ha

Publication Date: 2002

$20.00

This presentation summarizes the development and expansion of a comprehensive information system for corrosion of metals and alloys in high temperature gases. New insights in analysis of thermochemical data for the Fe-Ni-Cr-Co-C-O-S-N system are being compiled. Corrosion mechanisms emphasized are oxidation, sulfidation, sulfidation/oxidation, and carburization.

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02386 A NEW CARBURIZATION RESISTANT ALLOY FOR ETHYLENE PYROLYSIS FURNACE TUBES

Product Number: 51300-02386-SG

ISBN: 02386 2002 CP

Author: Y.Nishiyama, H.Semba, K.Ogawa, Y.Yamadera, Y.Sawaragi, and S.Kinomura

Publication Date: 2002

$20.00

A new wrought alloy has been developed for use as furnace tubes in ethylene pyrolysis plants. This alloy has an excellent carburization resistance due to uniform formation of protective Al2O3 oxide scale on the metal surface. Laboratory corrosion tests have been carried out to evaluate carburization resistance of the developed alloy.

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03473 PROPOSED STANDARD CARBURIZATION TEST METHOD

Product Number: 51300-03473-SG

ISBN: 03473 2003 CP

Author: George Lai, H. Lee Craig, Bingtao Li and Brian Gleeson

Publication Date: 2003

$20.00

A standard carburization test method has been developed that will allow investigators to generate carburization data under uniform, repeatable test parameters and procedures. Test results are discussed with particular reference to test parameters and procedures, as well as the methods of sample evaluation.

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51317-9006-OXIDATION AND CARBURIZATION OF ALLOYS EXPOSED TO IMPURE SUPERCRITICAL CO2

Product Number: 51317-9006-SG

Author: S. C. Kung / I. G. Wright

Publication Date: 2017

$20.00

A laboratory study was performed by exposing seven candidate heat exchanger alloys to simulated 2 (sCO2) Brayton power cycles. The alloys, consisting of fineirtriaitilcly s 3te.6e%ls ,O austenitic stainless steels, and nickel-base alloys, were exposed to impure CO2 containing 2 and 5.3% H2O at a constant pressure of 200 bar.

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51317--9532-Corrosion of Superalloys in 200 Bar 750°C Supercritical Carbon Dioxide

Product Number: 51317--9532-SG

ISBN: 9532 2017 CP

Author: James Keiser

Publication Date: 2017

$20.00

Selected Fe- and Ni-based alloys and superalloys have been exposed in 99.995% supercritical carbon dioxide for 500 hours at 750°C and 200 bar. Post exposure examination provided information on corrosion rates, microstructural evolution and the carbon concentration in the exposed materials.

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51318-10875-Chemical interaction of Austenitic and Ferritic Steels with B4C Powder in Liquid Sodium at 600°C

Product Number: 51318-10875-SG

Author: Marie Romedenne, Fabien Rouillard / Didier Hamon / Michel Tabarant / Daniel Monceau

Publication Date: 2018

$20.00

In the framework of studies on the control rods lifetime for Sodium Fast Reactor, three commercial steels were exposed to B4C powder in liquid sodium at 600°C for durations up to 3000 h.

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51318-10877-High Temperature Alloys Failures in the Petrochemical Furnaces. Mitigation and Prevention

Product Number: 51318-10877-SG

Author: Ali H. AlShawaf / Manabendra K. Maity

Publication Date: 2018

$20.00

This paper explains the most common damage mechanisms of high temperature alloys in radiant section such as creep/carburization, thermal fatigue/carburization, and thermal shock.

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Methods to Assess Carburization Damage and Remaining Life in Fired Heater Tubes

Product Number: 51323-18771-SG

Author: Jeff Goldstein

Publication Date: 2023

$20.00

Fired heaters in coking service are susceptible to carburization damage, which needs to be predicted and managed to prevent unexpected downtime and expedited replacement costs. Carburization damage occurs when carbonaceous material, i.e., coke, is deposited on a steel surface and exposed to high metal temperatures; such are the internal conditions present in fired heater tubes in coking services. At these high temperatures, the carbon diffuses into the steel microstructure and increases the hardness while reducing ductility. At an advanced state, this reduction in ductility may lead to tube failure if a mechanical or thermal shock is applied. The diffusion of carbon can also cause the formation of deleterious chromium carbides in the steel microstructure, reducing the high temperature corrosion resistance in those areas.

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Mitigation Of CRU Heater Tube Carburization By Modified High Heat Transfer Ceramic Cladding Materials

Product Number: 51322-17831-SG

Author: Natalie Hana Frank, Iain Stuart Hall, Paolo Brunello

Publication Date: 2022

$20.00

Common materials employed in catalytic reforming unit tubes are typically resistant to carburization due to protective chromium oxide films, but under low excess oxygen conditions can become compromised and allow carbon penetration and carbide formation at the exposed surface. Embrittlement and material wastage as a result of these mechanisms causes premature failures, with production loss, in addition to shutdown maintenance and replacement costs. Carburization in this environment is simulated in this paper through a pack carburizing method designed to create an environment optimal for diffusing carbon in an ASTM 335 9Cr-1Mo tube material.

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NACE TM0498-2023, Evaluation of the Carburization of Alloy Tubes Used for Ethylene Manufacture

Product Number: NACE TM0498-2023

$109.00

This AMPP standard establishes a standard test procedure for pack bed carburization of alloys used for ethylene manufacture. The pack bed carburization procedure is specified in this standard because it is simple to perform. The test specimen geometry chosen reflects the intent of the procedure to be used for evaluation of carburization of furnace tube alloys intended for ethylene manufacture.

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Reformer Pigtail Degradation Over 49 Years’ Service: A Case Study

Product Number: MECC23-20234-SG

Author: Ratnakar Kadikar, Abdulrahman Alrumaidh

Publication Date: 2023

$20.00

In Jan 2023, during reformer shutdown; one of the reformer inspections revealed cracks at hot collector and pigtail. Most of the cracks were on the surface and some of the cracks were through. Pigtail sample was removed, and it was taken for failure investigation to confirm the failure root cause.

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Remaining Life Assessment of 9Cr-1Mo Steel Radiant Heater Tube in Continuous Catalytic Reforming Unit

Product Number: 51324-21147-SG

Author: Sudharsanan Soundararajan

Publication Date: 2024

$40.00

The radiant tubes in fired heaters operating in the creep range are designed as per API 530. The typical creep design life of the heater tubes is 100,000hours. Tube sample from this 1st Inter-heater was removed after 166,500hours of operation with the process gas outlet temperature of 550oC (1022oF). The tube skin temperature was observed in the range of 600-630oC. Scale characterization using SEM/EDS, Hot and ambient tensile testing, Hardness measurement, Accelerated Creep rupture testing and creep testing was carried out as part of the assessment. This paper explains the methodology adopted for remaining life assessment and compares the results from Larson-Miller Parameter method (LMP) & MPC Omega method. The remaining life evaluation was carried out as per API 579-1/ASME FFS-1. The Creep ductility factor ?cdO and Scatter band factor ?srO was adjusted to match the Omega (?) parameter and initial strain rate (eo) derived from the creep test. As part of the metallurgical analysis damage due to carburization and metal dusting was also evaluated.

Products tagged with 'carburization'

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