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Title: Nickel-base alloys for severe environments

Abstract

Inconel alloys MA754 and MA758 are nickel-base, oxide dispersion-strengthened superalloys made by mechanical alloying. The simple nickel-chromium matrix, when combined with the strengthening effect of the yttrium oxide dispersoid during mechanical alloys, provides excellent creep properties, resistance to thermal fatigue, and surface stability suitable for operation without protective coatings. Gas turbine engine components are primary applications for alloy MA754, but this aerospace alloy has been applied in many other products that operate in severe conditions, and alloy MA758 was developed specifically for aggressive, elevated temperature industrial environments. Billets for large bar and plate are typically consolidated by hot isostatic pressing (HIP), because this technology allows production of forms suitable for a variety of industrial components. Material consolidated by HIP and conventionally worked by extrusion and hot rolling generally exhibits properties that are more isotropic than those of material consolidated by extrusion. However, the degree of anisotropy depends strongly on the specific processing of the consolidated billet. This article describes production of new mill shapes from HIP billets, and reviews current and potential applications such as skid rails for high-temperature walking-beam furnaces, heat treating furnace parts, equipment for handling molten glass, and furnace tubes.

Authors:
;  [1];  [2];  [3]
  1. Inco Alloys International Inc., Huntington, WV (United States)
  2. Inco Alloys Ltd., Hereford (United Kingdom)
  3. Daido Steel Co. Ltd., Nagoya (Japan)
Publication Date:
OSTI Identifier:
230713
Resource Type:
Journal Article
Journal Name:
Advanced Materials and Processes
Additional Journal Information:
Journal Volume: 149; Journal Issue: 3; Other Information: PBD: Mar 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; NICKEL BASE ALLOYS; HOT PRESSING; MECHANICAL PROPERTIES; MILLING; HOT WORKING; ANNEALING; CHEMICAL COMPOSITION; TENSILE PROPERTIES; YIELD STRENGTH; ULTIMATE STRENGTH; ELONGATION; FURNACES; EXPERIMENTAL DATA

Citation Formats

Wilson, R K, Flower, H L, Hack, G A.J., and Isobe, S. Nickel-base alloys for severe environments. United States: N. p., 1996. Web.
Wilson, R K, Flower, H L, Hack, G A.J., & Isobe, S. Nickel-base alloys for severe environments. United States.
Wilson, R K, Flower, H L, Hack, G A.J., and Isobe, S. 1996. "Nickel-base alloys for severe environments". United States.
@article{osti_230713,
title = {Nickel-base alloys for severe environments},
author = {Wilson, R K and Flower, H L and Hack, G A.J. and Isobe, S},
abstractNote = {Inconel alloys MA754 and MA758 are nickel-base, oxide dispersion-strengthened superalloys made by mechanical alloying. The simple nickel-chromium matrix, when combined with the strengthening effect of the yttrium oxide dispersoid during mechanical alloys, provides excellent creep properties, resistance to thermal fatigue, and surface stability suitable for operation without protective coatings. Gas turbine engine components are primary applications for alloy MA754, but this aerospace alloy has been applied in many other products that operate in severe conditions, and alloy MA758 was developed specifically for aggressive, elevated temperature industrial environments. Billets for large bar and plate are typically consolidated by hot isostatic pressing (HIP), because this technology allows production of forms suitable for a variety of industrial components. Material consolidated by HIP and conventionally worked by extrusion and hot rolling generally exhibits properties that are more isotropic than those of material consolidated by extrusion. However, the degree of anisotropy depends strongly on the specific processing of the consolidated billet. This article describes production of new mill shapes from HIP billets, and reviews current and potential applications such as skid rails for high-temperature walking-beam furnaces, heat treating furnace parts, equipment for handling molten glass, and furnace tubes.},
doi = {},
url = {https://www.osti.gov/biblio/230713}, journal = {Advanced Materials and Processes},
number = 3,
volume = 149,
place = {United States},
year = {Fri Mar 01 00:00:00 EST 1996},
month = {Fri Mar 01 00:00:00 EST 1996}
}