NUCAPT Literature Database


1–1 of 1 record found matching your query (RSS):

Select All    Deselect All
 |   | 
  Record Links
Type Michler, Thorsten; Lee, Yongwon; Gangloff, Richard P.; Naumann, Joerg
  Publication Influence of macro segregation on hydrogen environment embrittlement of SUS 316L stainless steel Volume Journal Article
Pages 2009
  Abstract International Journal of Hydrogen Energy  
  Corporate Author  
Publisher 34  
Editor 7
  Summary Language 3201-3209 Series Editor Hydrogen embrittlement; Austenitic stainless steel; Macro segregation; Nickel  
Abbreviated Series Title The objective of this work is to identify microstructural variables that lead to the large scatter of the relative resistance of 316 grade stainless steels to hydrogen environment embrittlement. In slow displacement rate tensile testing, two almost identical (by nominal chemical composition) heats of SUS 316L austenitic stainless steel showed significantly different susceptibilities to HEE cracking. Upon straining, drawn bar showed a string-like duplex microstructure consisting of α'-martensite and γ-austenite, whereas rolled plate exhibited a highly regular layered α'-γ structure caused by measured gradients in local Ni content (9.5-13 wt%). Both martensite and austenite are intrinsically susceptible to HEE. However, due to Ni macro segregation and microstructural heterogeneity, fast H-diffusion in martensite layers supported a 10 times faster H-enhanced crack growth rate and thus reduced tensile reduction in area. Nickel segregation is thus a primary cause of the high degree of variability in H2 cracking resistance for different product forms of 316 stainless steel.
  Series Issue ISSN  
  Expedition Notes  
Call Number  
Contribution Id  
Serial URL ISBN  
0360-3199 no NU @ karnesky @ 10957
Permanent link to this record
Select All    Deselect All
 |   | 

Personal tools
Seidman Group
Atom-Probe Tomography
Quick Search: