Effect of pressure on the magnetic and structural properties of X2CrNiMo17-12-2 austenitic stainless steel prepared by powder metallurgy method

2019 ◽  
Vol 1198 ◽  
pp. 126876
Author(s):  
Ayşe Nur Acar ◽  
Abdul Kadir Ekşi ◽  
Ahmet Ekicibil
Keyword(s):  
Stainless Steel ◽  
Powder Metallurgy ◽  
Austenitic Stainless Steel ◽  
Structural Properties ◽  
Powder Metallurgy Method ◽  
Effect Of Pressure

Structural properties of austenitic stainless steel in the initial state and after rf plasma nitriding

2002 ◽  
Vol 52 (S1) ◽  
pp. A61-A64 ◽  
Author(s):  
Y. Jirásková ◽  
M. Svoboda ◽  
O. Schneeweiss ◽  
T. Žák ◽  
C. Blawert
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Structural Properties ◽  
Plasma Nitriding ◽  
Rf Plasma ◽  
Initial State

ATI 304B7 P/M

Alloy Digest ◽  
2015 ◽  
Vol 64 (8) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
Austenitic Stainless Steel ◽  
Heat Treating ◽  
Boron Addition ◽  
Neutron Absorption ◽  
Bend Strength ◽  
Powder Metal ◽  
Type 304

Abstract ATI 304B7 P/M is a borated austenitic stainless steel of the type 304 base. Boron addition is accomplished through powder metallurgy. The uniform, fine dispersion of boron containing particles resulting from the P/M process imparts superior neutron absorption and enhanced toughness and ductility. This datasheet provides information on composition, physical properties, elasticity, and bend strength. It also includes information on corrosion resistance as well as forming, heat treating, joining, and powder metal forms. Filing Code: SS-1222. Producer or source: Allegheny Technologies Company.

Properties of Vacuum Sintered Duplex Stainless Steels

2006 ◽  
Vol 15-17 ◽  
pp. 828-833 ◽  
Author(s):  
Leszek Adam Dobrzański ◽  
Z. Brytan ◽  
Marco Actis Grande ◽  
Mario Rosso
Keyword(s):  
Stainless Steel ◽  
Powder Metallurgy ◽  
Chemical Composition ◽  
Austenitic Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Stainless Steels ◽  
Duplex Stainless Steels ◽  
Vacuum Furnace ◽  
Rapid Cooling ◽  
The Right

This work presents the possibility of obtaining duplex stainless steels through powder metallurgy technology starting from austenitic X2CrNiMo17-12-2, martensitic X6Cr13 powders by controlled addition of alloying elements, such as Cr, Ni, Mo, Cu in the right quantity to obtain the chemical composition of the structure similar to biphasic one. Moreover the ferritic stainless steel X6Cr17 has been mixed to austenitic stainless steel in the ratio of 50%-50% in order to exam the deriving structure after sintering. In the studies behind the preparation of mixes, Schaffler’s diagram was taken into consideration. Prepared mixes of powders have been compacted at 800 MPa and sintered in a vacuum furnace with argon backfilling at 1260°C for 1 hour; after sintering rapid cooling has been applied in N2.

Evaluation of Fracture Toughness Distribution in Ceramic-Metal Functionally Graded Materials

2007 ◽  
Vol 345-346 ◽  
pp. 497-500 ◽  
Author(s):  
Keiichiro Tohgo ◽  
Hiroyasu Araki ◽  
Yoshinobu Shimamura
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Powder Metallurgy ◽  
Austenitic Stainless Steel ◽  
Functionally Graded Materials ◽  
Stable Crack Growth ◽  
Functionally Graded ◽  
Stabilized Zirconia ◽  
Graded Materials ◽  
Conventional Tests

This paper deals with evaluation of fracture toughness in functionally graded materials (FGMs) consisting of partially stabilized zirconia (PSZ) and austenitic stainless steel SUS 304. FGMs and non-graded composites (non-FGMs) with fine and coarse microstructures are fabricated by powder metallurgy using PSZ and two kinds of SUS 304 powders. The fracture toughness is determined by conventional tests for several non-FGMs with each material composition and by a method utilizing stable crack growth for FGMs. Based on the experimental results, fracture mechanism, influences of microstructure on fracture toughness, and difference in fracture toughness between the FGMs and non-FGMs has been discussed.

scholarly journals Influence of Nitrogen Content on the Corrosion Behavior of Powder Metallurgy Nickel-Free Austenitic Stainless Steel

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Weili Yu ◽  
Changhai Du ◽  
Hongren Shen ◽  
Hao He ◽  
Yong Yu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Powder Metallurgy ◽  
Austenitic Stainless Steel ◽  
Corrosion Current ◽  
N Content ◽  
Potentiodynamic Polarization Curves ◽  
Immersion Corrosion ◽  
Size Number ◽  
Current Densities ◽  
Corrosion Pits

Herein, powder metallurgy gas-solid nitriding was used to prepare a high-nitrogen Ni-free austenitic stainless steel with more than 1.0 wt.% N. Study of the microstructures and corrosion resistances of the as-prepared samples revealed that the corrosion weight loss, size, number of corrosion pits, and corrosion depth decreased as the N content increased from 1.19 to 1.37 wt.%. The self-corrosion current densities of the alloys were determined from their potentiodynamic polarization curves. The changes in the capacitive arc radius as demonstrated by the Nyquist curves were consistent with the conclusions of the immersion corrosion analysis; that is, a high N content leads to a high corrosion resistance.

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