scholarly journals Heat Treatment Effect on the Fatigue Characteristics of Additive Manufactured Stainless Steel 316L

Author(s):  
Ashwin Polishetty ◽  
Guy Littlefair
2006 ◽  
Vol 321-323 ◽  
pp. 607-610
Author(s):  
Dong Ho Bae ◽  
Byung Bok Choi ◽  
Gyu Young Lee

Austenitic stainless steel has a large problem to decrease its corrosion resistance and mechanical properties by sensitization in the welding process. Thus, in this paper, corrosion fatigue characteristics of artificially sensitized STS304 were investigated. According as heat treatment period for sensitization increases, the Cr-carbide deposition in the grain boundary and degree of sensitization (Ia/Ir) increased. From the results, corrosion fatigue strength of sensitized STS304 was remarkably reduced compare to non-sensitized ones.


2019 ◽  
Vol 822 ◽  
pp. 563-568
Author(s):  
Vadim Sufiiarov ◽  
Evgenii Borisov ◽  
Igor A. Polozov

The article presents the results of a study on the additive manufacturing of functional graded steel parts. Studies have been carried out on the possibility of growing blanks from two steels simultaneously – tool steel H13 and stainless steel 316L. The study of the microstructure of the transition from one steel to another showed that the transition layer is smooth and is about 200 microns thick. The mechanical properties in the transition layer are distributed over the gradient and smoothly change from one material to another. The structure and properties of the transition layer after heat treatment and hot isostatic pressing are shown.


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