Correlation of austenite stability and ductile-to-brittle transition behavior of high-nitrogen 18Cr–10Mn austenitic steels

2011 ◽  
Vol 528 (24) ◽  
pp. 7257-7266 ◽  
Author(s):  
Byoungchul Hwang ◽  
Tae-Ho Lee ◽  
Seong-Jun Park ◽  
Chang-Seok Oh ◽  
Sung-Joon Kim
Keyword(s):  
Austenitic Steels ◽  
High Nitrogen ◽  
Austenite Stability ◽  
Brittle Transition ◽  
Transition Behavior ◽  
Ductile To Brittle Transition

Ductile-to-Brittle Transition Behavior of High-Nitrogen 18Cr-10Mn-0.35N Austenitic Steels Containing Ni and Cu

2010 ◽  
Vol 654-656 ◽  
pp. 158-161 ◽  
Author(s):  
Byoung Chul Hwang ◽  
Tae Ho Lee ◽  
Seong Jun Park ◽  
Chang Seok Oh ◽  
Sung Joon Kim
Keyword(s):  
Charpy Impact ◽  
Charpy Impact Test ◽  
Austenitic Steels ◽  
Favorable Effect ◽  
High Nitrogen ◽  
Delta Ferrite ◽  
Brittle Transition ◽  
Transition Behavior ◽  
Ductile To Brittle Transition ◽  
Crystallographic Planes

Ductile-to-brittle transition behavior of high-nitrogen 18Cr-10Mn-0.35N austenitic steels containing Ni and Cu was investigated by means of Charpy impact test and fractographic analysis. The commonly observed fracture mode of the specimens tested at -196 oC was transgranular cleavage-like brittle with flat facets occurring along {111} crystallographic planes, thereby leading to the occurrence of ductile-to-brittle transition. For all the steels investigated in the present study, the ductile-to-brittle transition temperature (DBTT) measured from Charpy impact tests was much higher by 90 to 135 oC than that predicted by empirical equation strongly depending on N content. The combined addition of Ni and Cu enabled the 18Cr-10Mn-0.35N steels to have the lowest DBTT, which could be explained by relatively high austenite stability and favorable effect of Cu as well as the absence of delta-ferrite.

scholarly journals Ductile to Brittle Transition Behavior in Cast Duplex Stainless Steels

2014 ◽  
Vol 100 (9) ◽  
pp. 1150-1157 ◽  
Author(s):  
Osamu Takahashi ◽  
Morio Yabe ◽  
Yohei Shibui ◽  
Yo Tomota
Keyword(s):  
Stainless Steels ◽  
Duplex Stainless Steels ◽  
Brittle Transition ◽  
Transition Behavior ◽  
Ductile To Brittle Transition

scholarly journals Comparison of Ductile-to-Brittle Transition Behavior in Two Similar Ferritic Oxide Dispersion Strengthened Alloys

Materials ◽  
2016 ◽  
Vol 9 (8) ◽  
pp. 637 ◽  
Author(s):  
Jesus Chao ◽  
Rosalia Rementeria ◽  
Maria Aranda ◽  
Carlos Capdevila ◽  
Jose Gonzalez-Carrasco
Keyword(s):  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion ◽  
Brittle Transition ◽  
Transition Behavior ◽  
Ductile To Brittle Transition
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