Effect of Tool Geometry on the Microstructure of Friction Stir Welding of Copper and 316L Stainless Steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493722" target="_blank" >RIV/00216208:11320/24:10493722 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CMDtNQu_a1" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CMDtNQu_a1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adem.202301812" target="_blank" >10.1002/adem.202301812</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Tool Geometry on the Microstructure of Friction Stir Welding of Copper and 316L Stainless Steel

Popis výsledku v původním jazyce

The microstructure evolution during dissimilar friction stir welding of copper with stainless steel 316L is studied. The welding is performed in transparence configuration using tools of two different geometries. The joints are characterized by optical microscopy, scanning and transmission electron microscopy, electron backscattered diffraction, and microhardness. The microstructure and crystallographic texture of base metals are significantly affected. The joint produced using a shoulder of 8 mm in diameter is characterized by a copper nugget with refined grains. The texture of copper is dominated by B/B over bar $B / bar{B}$ component of the shear texture. The steel beneath the tool shows a grain refinement with grains of sub-micron size and a texture which is close to the ideal simple shear texture. For the joint produced by the 16 mm diameter tool shoulder, the nugget consists of large grains of copper, while the steel beneath the tool shows small recrystallized grains of micrometer size. The texture in the steel is dominated by the B/B over bar $B / bar{B}$ component of the shear texture. The Cu/316L interface in both types of joint is of very good quality. In a detailed study of the interface, it is revealed that the welding of metals is achieved by mutual intense mechanical interlocking without formation of any intermetallic compounds. A dramatic influence of the tool is demonstrated on the microstructure of Cu-316L friction stir melding joints. A small tool shoulder diameter induces an overall refinement of the microstructure. A large tool shoulder diameter generates more heat, yielding a coarse-grained structure of Cu, while the grains in steel are less refined. The texture in all cases is a typical shear texture.image (c) 2024 WILEY-VCH GmbH

Název v anglickém jazyce

Effect of Tool Geometry on the Microstructure of Friction Stir Welding of Copper and 316L Stainless Steel

Popis výsledku anglicky

The microstructure evolution during dissimilar friction stir welding of copper with stainless steel 316L is studied. The welding is performed in transparence configuration using tools of two different geometries. The joints are characterized by optical microscopy, scanning and transmission electron microscopy, electron backscattered diffraction, and microhardness. The microstructure and crystallographic texture of base metals are significantly affected. The joint produced using a shoulder of 8 mm in diameter is characterized by a copper nugget with refined grains. The texture of copper is dominated by B/B over bar $B / bar{B}$ component of the shear texture. The steel beneath the tool shows a grain refinement with grains of sub-micron size and a texture which is close to the ideal simple shear texture. For the joint produced by the 16 mm diameter tool shoulder, the nugget consists of large grains of copper, while the steel beneath the tool shows small recrystallized grains of micrometer size. The texture in the steel is dominated by the B/B over bar $B / bar{B}$ component of the shear texture. The Cu/316L interface in both types of joint is of very good quality. In a detailed study of the interface, it is revealed that the welding of metals is achieved by mutual intense mechanical interlocking without formation of any intermetallic compounds. A dramatic influence of the tool is demonstrated on the microstructure of Cu-316L friction stir melding joints. A small tool shoulder diameter induces an overall refinement of the microstructure. A large tool shoulder diameter generates more heat, yielding a coarse-grained structure of Cu, while the grains in steel are less refined. The texture in all cases is a typical shear texture.image (c) 2024 WILEY-VCH GmbH

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/EF15_003%2F0000485" target="_blank" >EF15_003/0000485: Centrum nanomateriálů pro pokročilé aplikace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Advanced Engineering Materials

ISSN

1438-1656

e-ISSN

1527-2648

Svazek periodika

26

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

001169494800001

EID výsledku v databázi Scopus

2-s2.0-85185500637