Menu
Search
Filters
Close
Menu

03469 Cast 20Cr32Ni1Nb Alloy Aged Mechanical Property Improvements via Chemistry Modifications

Picture for 03469 Cast 20Cr32Ni1Nb Alloy Aged Mechanical
Available for download
Product Number: 51300-03469-SG
ISBN: 03469 2003 CP
Author: Joel Magnan, John J. Hoffman
$0.00
$20.00
$20.00
A laboratory study was performed to investigate the aged mechanical properties of standard chemistry static cast 20Cr32Ni1Nb alloy versus a modified chemistry version of the alloy. The modified chemistry consisted of minimizing the niobium-to-carbon ratio and the silicon content and increasing the anganese content. Mechanical testing at room temperature and elevated temperature, high temperature creep rupture testing, and microstructural analyses were performed on material in the ascast condition as well as material aged from 10 to 10,000 hours at a constant temperature of 1472F (800C). Room temperature mechanical testing indicated that the aged tensile strength and aged ductility of the modified chemistry alloy was consistently superior to the standard chemistry alloy. Microstructural analysis indicated the tensile strength and ductility degradation of the standard chemistry material was directly correlated to the precipitation of a nickel-niobium-silicon rich phase.The chemistry modification mitigated precipitation of the detrimental nickel-niobium-silicon rich phase. Keywords: heat-resistant casting, aging, mechanical properties, intermetallic silicides, G-phase
A laboratory study was performed to investigate the aged mechanical properties of standard chemistry static cast 20Cr32Ni1Nb alloy versus a modified chemistry version of the alloy. The modified chemistry consisted of minimizing the niobium-to-carbon ratio and the silicon content and increasing the anganese content. Mechanical testing at room temperature and elevated temperature, high temperature creep rupture testing, and microstructural analyses were performed on material in the ascast condition as well as material aged from 10 to 10,000 hours at a constant temperature of 1472F (800C). Room temperature mechanical testing indicated that the aged tensile strength and aged ductility of the modified chemistry alloy was consistently superior to the standard chemistry alloy. Microstructural analysis indicated the tensile strength and ductility degradation of the standard chemistry material was directly correlated to the precipitation of a nickel-niobium-silicon rich phase.The chemistry modification mitigated precipitation of the detrimental nickel-niobium-silicon rich phase. Keywords: heat-resistant casting, aging, mechanical properties, intermetallic silicides, G-phase
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 00512 HIGH TEMPERATURE AGING CHARACTERISTICS
Available for download

00512 HIGH TEMPERATURE AGING CHARACTERISTICS OF 20Cr32Ni1Nb CASTINGS

Product Number: 51300-00512-SG
ISBN: 00512 2000 CP
Author: J. J. Hoffman
$20.00
Picture for 10361 High-Temperature Cracking of 800HT Pigtails in a Hydrogen Unit
Available for download

10361 High-Temperature Cracking of 800HT Pigtails in a Hydrogen Unit

Product Number: 51300-10361-SG
ISBN: 10361 2010 CP
Author: Xavier Roumeau
Publication Date: 2010
$20.00
Picture for 07424 Precipitation and Its Effect on the Design of Cast Heat Resistant Alloys
Available for download

07424 Precipitation and Its Effect on the Design of Cast Heat Resistant Alloys

Product Number: 51300-07424-SG
ISBN: 07424 2007 CP
Author: D-Voke, R-Pankiw, N-Evans, K-Liu, M-Santella, V-Sikka, G-Muralidharan, P-Maziasz, & C-Stevens
Publication Date: 2007
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support