Microstructural Evolution of Welded Stainless Steels on Integrated Effect of Thermal Aging and Low Flux Irradiation

2017 ◽  
pp. 703-710
Author(s):  
Martin Bjurman ◽  
Kristina Lindgren ◽  
Mattias Thuvander ◽  
Peter Ekström ◽  
Pål Efsing
Keyword(s):  
Microstructural Evolution ◽  
Stainless Steels ◽  
Thermal Aging

scholarly journals Thermal Aging Phenomena in Cast Duplex Stainless Steels

JOM ◽  
2015 ◽  
Vol 68 (2) ◽  
pp. 507-516 ◽  
Author(s):  
T. S. Byun ◽  
Y. Yang ◽  
N. R. Overman ◽  
J. T. Busby
Keyword(s):  
Stainless Steels ◽  
Thermal Aging ◽  
Duplex Stainless Steels ◽  
Aging Phenomena

scholarly journals Influence of Mo Additions on the Mechanical Properties of Cast Duplex Stainless Steels before and after Thermal Aging

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 295
Author(s):  
Shilei Li ◽  
Yanli Wang ◽  
Xitao Wang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steels ◽  
Thermal Aging ◽  
Decomposition Kinetics ◽  
Before And After ◽  
Mo Content ◽  
Impact Energies ◽  
The Impact ◽  
Hardness Values ◽  
Mo Additions

The influence of Mo additions on the mechanical properties of cast duplex stainless steel (CDSS) before and after thermal aging was investigated using a series of model alloys with different Mo contents ranging from 0 to 1.75 wt%. By increasing Mo content, the content, morphology, and distribution of ferrite in CDSS change significantly. After thermal aging at 400 °C for 3000 h, the impact properties of all CDSS specimens obviously decline, and their hardness values in ferrite significantly increase. The impact energies of the aged CDSS decline, and the proportion of cleavage features significantly increases with Mo content increasing. The spinodal decomposition kinetics in ferrite is not significantly affected by the Mo contents. High content and interconnected ferrite will lead to the severe embrittlement in CDSS after thermal aging.

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