Evaluation of Physical and Optical Properties on Functionally Graded Piping Joint Made from Cu and Austenitic Stainless Steel Powder

2013 ◽  
pp. 2397-2406
Author(s):  
Kouichi Nakano
Keyword(s):  
Stainless Steel ◽  
Optical Properties ◽  
Austenitic Stainless Steel ◽  
Steel Powder ◽  
Functionally Graded ◽  
Stainless Steel Powder

scholarly journals Microstructures of Laser Deposited 304L Austenitic Stainless Steel

2000 ◽  
Vol 625 ◽  
Author(s):  
John A. Brooks ◽  
Thomas J. Headley ◽  
Charles V. Robino
Keyword(s):  
Stainless Steel ◽  
Solid State ◽  
Austenitic Stainless Steel ◽  
Single Phase ◽  
Alloy Composition ◽  
Thermal Conditions ◽  
Steel Powder ◽  
Stainless Steel Powder ◽  
304L Stainless Steel ◽  
Transformation Mechanisms

AbstractLaser deposits fabricated from two different compositions of 304L stainless steel powder were characterized to determine the nature of the solidification and solid state transformations. One of the goals of this work was to determine to what extent novel microstructures consisting of single-phase austenite could be achieved with the thermal conditions of the LENS process. Although ferrite-free deposits were not obtained, structures with very low ferrite content were achieved. It appeared that, with slight changes in alloy composition, this goal could be met via two different solidification and transformation mechanisms.

Evaluation of Physical Properties on Functionally Graded Piping Joints Made from Cu and Austenitic Stainless Steel Powder

2009 ◽  
Vol 631-632 ◽  
pp. 273-278
Author(s):  
K. Nakano ◽  
T. Anzai ◽  
Tomiko Yamaguchi ◽  
Kazumasa Nishio
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Austenitic Stainless Steels ◽  
Steel Powder ◽  
Functionally Graded ◽  
One Dimensional ◽  
Mixing Ratios ◽  
Mixture Rule ◽  
Welding Materials

Welding materials, that the principal chemical component is nickel, are used usually for the welding between copper and austenitic stainless steels. But many kinds of mechanical or physical properties of welds between two materials will change largely. In this study, Functionally Graded Piping Joints (FGPJ) have been manufactured as an experiment using copper and austenitic stainless steel (SUS304) powder by a process based on HIP. This composition has been confirmed by absorbed electron and characteristics X-ray images of each mixed layer for FGPJ to be uniform or continuous. The following items have been investigated and compared with the linear law of mixture rule: Vickers hardness, thermal expansion, and thermal conductivity at a one-dimensional non-steady state etc. Those physical properties have been identified to depend on the mixing ratios of copper and austenitic stainless steel (SUS304). Pretty good agreements have been obtained between the experimental data and the calculated values according to the linear law of mixture rule.

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