Abstract
The paper presents the scanning and transmission electron microscope investigations of the structure, phase composition, and morphology of heat-resisting alloy modified by thermal treatment and additionally alloyed by rhenium and lanthanum. Rhenium alloy is obtained by the directional crystallization technique. The structural investigations are carried out for three alloy states, i.e. 1) original (after the directional crystallization); 2) 1150°C annealing during 1 h and 1100°C annealing during 480 h; 3) 1150°C annealing during 1 h and 1100°C annealing during 1430 h. It is shown that fcc-based γ- and γ'-phases are primary in all states of the alloy. γ'-phase has L12 structure, while γ-phase is a disordered phase. Rhenium and lanthanum are phase-forming elements. Investigations show that high-temperature annealing modifies the structural and phase conditions of the heat-resisting alloy.
| Original language | English |
|---|---|
| Article number | 012036 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 156 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 8 Nov 2016 |
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- Materials Science(all)
- Engineering(all)
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The structure of heat-resisting alloy modified by thermal treatment and alloyed by rhenium and lanthanum. / Kozlov, E. V.; Popova, N. A.; Nikonenko, E. L.; Kondratyuk, A. A.; Kuznetsov, M. E.; Klopotov, A. A.
In: IOP Conference Series: Materials Science and Engineering, Vol. 156, No. 1, 012036, 08.11.2016.Research output: Contribution to journal › Article
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TY - JOUR
T1 - The structure of heat-resisting alloy modified by thermal treatment and alloyed by rhenium and lanthanum
AU - Kozlov, E. V.
AU - Popova, N. A.
AU - Nikonenko, E. L.
AU - Kondratyuk, A. A.
AU - Kuznetsov, M. E.
AU - Klopotov, A. A.
PY - 2016/11/8
Y1 - 2016/11/8
N2 - The paper presents the scanning and transmission electron microscope investigations of the structure, phase composition, and morphology of heat-resisting alloy modified by thermal treatment and additionally alloyed by rhenium and lanthanum. Rhenium alloy is obtained by the directional crystallization technique. The structural investigations are carried out for three alloy states, i.e. 1) original (after the directional crystallization); 2) 1150°C annealing during 1 h and 1100°C annealing during 480 h; 3) 1150°C annealing during 1 h and 1100°C annealing during 1430 h. It is shown that fcc-based γ- and γ'-phases are primary in all states of the alloy. γ'-phase has L12 structure, while γ-phase is a disordered phase. Rhenium and lanthanum are phase-forming elements. Investigations show that high-temperature annealing modifies the structural and phase conditions of the heat-resisting alloy.
AB - The paper presents the scanning and transmission electron microscope investigations of the structure, phase composition, and morphology of heat-resisting alloy modified by thermal treatment and additionally alloyed by rhenium and lanthanum. Rhenium alloy is obtained by the directional crystallization technique. The structural investigations are carried out for three alloy states, i.e. 1) original (after the directional crystallization); 2) 1150°C annealing during 1 h and 1100°C annealing during 480 h; 3) 1150°C annealing during 1 h and 1100°C annealing during 1430 h. It is shown that fcc-based γ- and γ'-phases are primary in all states of the alloy. γ'-phase has L12 structure, while γ-phase is a disordered phase. Rhenium and lanthanum are phase-forming elements. Investigations show that high-temperature annealing modifies the structural and phase conditions of the heat-resisting alloy.
UR - http://www.scopus.com/inward/record.url?scp=85001115521&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85001115521&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/156/1/012036
DO - 10.1088/1757-899X/156/1/012036
M3 - Article
VL - 156
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 1
M1 - 012036
ER -