Texture and Differential Stress Development in W/Ni-Co Composite after Rotary Swaging

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00531359" target="_blank" >RIV/61389005:_____/20:00531359 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27360/20:10245908

Result on the web

<a href="https://doi.org/10.3390/ma13122869" target="_blank" >https://doi.org/10.3390/ma13122869</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13122869" target="_blank" >10.3390/ma13122869</a>

Result language

angličtina

Original language name

Texture and Differential Stress Development in W/Ni-Co Composite after Rotary Swaging

Original language description

Knowledge of texture and residual stresses in tungsten heavy pseudoalloys is substantial for the microstructure optimization. These characteristics were determined in cold and warm rotary swaged W/NiCo composite with help of neutron diffraction. The results were discussed in view of the observed microstructure and mechanical properties. The investigated bars consisted of tungsten agglomerates (bcc lattice) surrounded by NiCo-based matrix (fcc lattice). No preferential crystallographic orientation was found in the as-sintered bar. A strong texture was formed in both the tungsten agglomerates ( fiber texture parallel to the swaging axis) and in the NiCo-based matrix ( fiber texture) after rotary swaging. Although usually of double-fiber texture, the fiber of the fcc structures was nearly missing in the matrix. Further, the cold-swaged bar exhibited substantially stronger texture for both phases which corresponds to the higher measured ultimate tensile strength. The residual stress differences were employed for characterization of the stress state of the bars. The largest residual stress difference (approximate to 400 MPa) was found at the center of the bar deformed at room temperature. The hoop stresses were non-symmetrical with respect to the swaging axis, which was likely caused by the elliptical cross section of the as-sintered bar.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

2869

UT code for WoS article

000550195100001

EID of the result in the Scopus database

2-s2.0-85087444735