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Title: NanoComposite Stainless Steel Powder Technologies

Abstract

Oak Ridge National Laboratory has been investigating a new class of Fe-based amorphous material stemming from a DARPA, Defense Advanced Research Projects Agency initiative in structural amorphous metals. Further engineering of the original SAM materials such as chemistry modifications and manufacturing processes, has led to the development of a class of Fe based amorphous materials that upon processing, devitrify into a nearly homogeneous distribution of nano sized complex metal carbides and borides. The powder material is produced through the gas atomization process and subsequently utilized by several methods; laser fusing as a coating to existing components or bulk consolidated into new components through various powder metallurgy techniques (vacuum hot pressing, Dynaforge, and hot isostatic pressing). The unique fine scale distribution of microstructural features yields a material with high hardness and wear resistance compared to material produced through conventional processing techniques such as casting while maintaining adequate fracture toughness. Several compositions have been examined including those specifically designed for high hardness and wear resistance and a composition specifically tailored to devitrify into an austenitic matrix (similar to a stainless steel) which poses improved corrosion behavior.

Authors:
;  [1]
  1. (MesoCoat, Inc.)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE EE Office of Industrial Technologies (EE-2F)
OSTI Identifier:
1048214
Report Number(s):
NFE-11-03444
TRN: US201217%%18
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ATOMIZATION; BORIDES; CARBIDES; CASTING; CHEMISTRY; COATINGS; CORROSION; DISTRIBUTION; FRACTURE PROPERTIES; HARDNESS; HOT PRESSING; LASERS; MANUFACTURING; MODIFICATIONS; ORNL; POWDER METALLURGY; PRESSING; PROCESSING; STAINLESS STEELS; WEAR RESISTANCE

Citation Formats

DeHoff, R., and Glasgow, C. NanoComposite Stainless Steel Powder Technologies. United States: N. p., 2012. Web. doi:10.2172/1048214.
DeHoff, R., & Glasgow, C. NanoComposite Stainless Steel Powder Technologies. United States. doi:10.2172/1048214.
DeHoff, R., and Glasgow, C. Wed . "NanoComposite Stainless Steel Powder Technologies". United States. doi:10.2172/1048214. https://www.osti.gov/servlets/purl/1048214.
@article{osti_1048214,
title = {NanoComposite Stainless Steel Powder Technologies},
author = {DeHoff, R. and Glasgow, C.},
abstractNote = {Oak Ridge National Laboratory has been investigating a new class of Fe-based amorphous material stemming from a DARPA, Defense Advanced Research Projects Agency initiative in structural amorphous metals. Further engineering of the original SAM materials such as chemistry modifications and manufacturing processes, has led to the development of a class of Fe based amorphous materials that upon processing, devitrify into a nearly homogeneous distribution of nano sized complex metal carbides and borides. The powder material is produced through the gas atomization process and subsequently utilized by several methods; laser fusing as a coating to existing components or bulk consolidated into new components through various powder metallurgy techniques (vacuum hot pressing, Dynaforge, and hot isostatic pressing). The unique fine scale distribution of microstructural features yields a material with high hardness and wear resistance compared to material produced through conventional processing techniques such as casting while maintaining adequate fracture toughness. Several compositions have been examined including those specifically designed for high hardness and wear resistance and a composition specifically tailored to devitrify into an austenitic matrix (similar to a stainless steel) which poses improved corrosion behavior.},
doi = {10.2172/1048214},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 25 00:00:00 EDT 2012},
month = {Wed Jul 25 00:00:00 EDT 2012}
}

Technical Report:

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