Three dimensional atom probe investigation of vanadium nitride precipitates and the role of oxygen and boron in rapidly solidified 316 stainless steel

A vanadium-bearing variant of 316 stainless steel that was rapid solidification processed (RSP) by gas atomization and hot extrusion of the powder (10:1 extrusion ratio at 900°C) has been studied previously by conventional atom probe field ion microscopy (APFIM). The mechanical properties of this steel were markedly improved by RSP and aging (600°C for 1000 hours). High nitrogen (0.45 at% (0.2 wt%)) and oxygen (0.16 at% (0.05 wt%)) contents were intentionally introduced by melting under 80% nitrogen/20% oxygen gas and atomizing in nitrogen gas. A nominal boron concentration of 0.04 at% (0.01 wt%)) is present as a tramp element. As a result, a large number density (˜ 2 × 1021 m-3) of 25 nm plate-like vanadium-rich nitrides precipitate during aging of the alloy and these precipitates contribute a major portion of the strengthening. Previous efforts to locate the oxygen in the structure using APFIM were inconclusive largely due to poor counting statistics.

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Inhomogeneous distribution of manganese atoms in ferromagnetic ZnSnAs2:Mn thin films on InP revealed by three-dimensional atom probe investigation

Journal of Applied Physics ◽

10.1063/1.4914065 ◽

2015 ◽

Vol 117 (17) ◽

pp. 17B905 ◽

Cited By ~ 7

Author(s):

Naotaka Uchitomi ◽

Hiroaki Inoue ◽

Takahiro Kato ◽

Hideyuki Toyota ◽

Hiroshi Uchida

Keyword(s):

Thin Films ◽

Three Dimensional ◽

Atom Probe ◽

Inhomogeneous Distribution ◽

Probe Investigation

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Three-dimensional atom probe investigation of Co/Al thin film reaction

Microelectronic Engineering ◽

10.1016/s0167-9317(03)00460-x ◽

2003 ◽

Vol 70 (2-4) ◽

pp. 533-538 ◽

Cited By ~ 11

Author(s):

V. Vovk ◽

G. Schmitz ◽

R. Kirchheim

Keyword(s):

Thin Film ◽

Three Dimensional ◽

Atom Probe ◽

Al Thin Film ◽

Probe Investigation

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On the Role of Characterization in the Design of Interfaces in Nanoscale Materials Technology

Microscopy and Microanalysis ◽

10.1017/s1431927604040504 ◽

2004 ◽

Vol 10 (3) ◽

pp. 324-335 ◽

Cited By ~ 11

Author(s):

S.P. Ringer ◽

K.R. Ratinac

Keyword(s):

Three Dimensional ◽

Atom Probe ◽

Turbine Rotor ◽

Clay Nanocomposites ◽

Multimodal Approach ◽

Transmission Electron ◽

Different Types ◽

And Control

This work reviews recent research on the design and control of interfaces in engineering nanomaterials. Four case studies are presented that demonstrate the power of a multimodal approach to the characterization of different types of interfaces. We have used a combination of conventional, high resolution, and analytical transmission electron microscopy, microbeam electron diffraction, and three-dimensional atom probe to study polymer–clay nanocomposites, turbine rotor steels used for power generation, multicomponent aluminum alloys, and nanocrystalline magnetic materials.

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ChemInform Abstract: The Influence of Temperature and the Role of Chromium in the Passive Layer in Relation to Pitting Corrosion of 316 Stainless Steel in NaCl Solution.

Chemischer Informationsdienst ◽

10.1002/chin.198651027 ◽

1986 ◽

Vol 17 (51) ◽

Author(s):

C. PALLOTTA ◽

N. DE CRISTOFANO ◽

R. C. SALVAREZZA ◽

A. J. ARVIA

Keyword(s):

Stainless Steel ◽

Pitting Corrosion ◽

Passive Layer ◽

Nacl Solution ◽

Influence Of Temperature ◽

316 Stainless Steel

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Three-dimensional atom probe investigation of boron distribution in CoFeB∕MgO∕CoFeB magnetic tunnel junctions

Applied Physics Letters ◽

10.1063/1.2973045 ◽

2008 ◽

Vol 93 (7) ◽

pp. 071901 ◽

Cited By ~ 38

Author(s):

S. Pinitsoontorn ◽

A. Cerezo ◽

A. K. Petford-Long ◽

D. Mauri ◽

L. Folks ◽

...

Keyword(s):

Tunnel Junctions ◽

Three Dimensional ◽

Magnetic Tunnel Junctions ◽

Atom Probe ◽

Boron Distribution ◽

Probe Investigation

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Mechanism Analysis and Dairy Filtration Experimental Research on Porous 1Cr18Ni9 Stainless Steel Components

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.668.902 ◽

2013 ◽

Vol 668 ◽

pp. 902-906

Author(s):

Xiu Ping Dong ◽

Ya Ting Huang ◽

Ming Ji Huang

Keyword(s):

Stainless Steel ◽

Porous Material ◽

Three Dimensional ◽

Porous Metal ◽

Chocolate Milk ◽

Mechanism Analysis ◽

Steel Wires ◽

Before And After ◽

Filtering Efficiency

Cool-drawn 1Cr18Ni9 stainless steel wires of 0.1~0.5 mm can be woven and punched to prepare porous metal filters. There is certain amount of connected micron pores in the transformable components. Filtration mechanism of this porous material is investigated and three series of samples with different diameter of wires, porosities and filtrating ranges are prepared. Filtration performances compares experiments are carried out on a kind of chocolate milk with the brand of Sanyuan. Three-dimensional microscopy, KEYENCE VHX-600, is applied to investigate the diaphragms before and after filtrating. Portable contamination analysis kit, HPCA-2, is chosen to identify the degree of contaminating. Results indicate that these kind of porous metal filters have valid solid/fluid separating effects. Wires diameters and other preparation parameters will identify the porosity. Thinner wires contribute to more and tinier porous and will block particles effectively. Thickness of filters plays the similar role of filtration layer. Higher porosity will increase the cleanliness of the passing fluid and decrease the filtering efficiency. The data in this paper provide technical support to the application in dairy filtration industry.

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