NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login

Press Enter or click the Search button to begin your search.

Back to Results
Alloy softening in binary iron solid solutionsAn investigation was conducted to determine softening and hardening behavior in 19 binary iron-alloy systems. Microhardness tests were conducted at four temperatures in the range 77 to 411 K. Alloy softening was exhibited by 17 of the 19 alloy systems. Alloy softening observed in 15 of the alloy systems was attributed to an intrinsic mechanism, believed to be lowering of the Peierls (lattice friction) stress. Softening and hardening rates could be correlated with the atomic radius ratio of solute to iron. Softening observed in two other systems was attributed to an extrinsic mechanism, believed to be associated with scavenging of interstitial impurities.
Document ID
19760010144
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Stephens, J. R. (NASA Lewis Research Center Cleveland, OH, United States)
Witzke, W. R. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
February 1, 1976
Subject Category
Metallic Materials
Report/Patent Number
NASA-TN-D-8167
E-8479
Report Number: NASA-TN-D-8167
Report Number: E-8479
Accession Number
76N17232
Funding Number(s)
PROJECT: RTOP 506-16
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available