scholarly journals Comparison of characteristics of St3 in a free and annealed state

2021 ◽  
Vol 1155 (1) ◽  
pp. 012002
Author(s):  
O A Nasibullina ◽  
M Yu Pechenkina
Keyword(s):  
Annealed State

scholarly journals Microstructure and Mechanical Properties of Novel Quasibinary Al-Cu-Yb and Al-Cu-Gd Alloys

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 476
Author(s):  
Sayed Amer ◽  
Ruslan Barkov ◽  
Andrey Pozdniakov
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Mechanism Of Action ◽  
Annealing Temperature ◽  
Eutectic Reaction ◽  
Solidification Process ◽  
Annealed State ◽  
Microstructure And Mechanical Properties ◽  
Cold Rolled ◽  
Hot Rolled

Microstructure of Al-Cu-Yb and Al-Cu-Gd alloys at casting, hot-rolled -cold-rolled and annealed state were observed; the effect of annealing on the microstructure was studied, as were the mechanical properties and forming properties of the alloys, and the mechanism of action was explored. Analysis of the solidification process showed that the primary Al solidification is followed by the eutectic reaction. The second Al8Cu4Yb and Al8Cu4Gd phases play an important role as recrystallization inhibitor. The Al3Yb or (Al, Cu)17Yb2 phase inclusions are present in the Al-Cu-Yb alloy at the boundary between the eutectic and aluminum dendrites. The recrystallization starting temperature of the alloys is in the range of 250–350 °C after rolling with previous quenching at 590 and 605 °C for Al-Cu-Yb and Al-Cu-Gd, respectively. The hardness and tensile properties of Al-Cu-Yb and Al-Cu-Gd as-rolled alloys are reduced by increasing the annealing temperature and time. The as-rolled alloys have high mechanical properties: YS = 303 MPa, UTS = 327 MPa and El. = 3.2% for Al-Cu-Yb alloy, while YS = 290 MPa, UTS = 315 MPa and El. = 2.1% for Al-Cu-Gd alloy.

A Law of Work-Hardening

1948 ◽  
Vol 15 (3) ◽  
pp. 265-273
Author(s):  
A. M. Freudenthal ◽  
M. Reiner
Keyword(s):  
Mild Steel ◽  
Work Hardening ◽  
Wire Drawing ◽  
Total Work ◽  
Exponential Functions ◽  
Recoverable Strain ◽  
Annealed State ◽  
Logarithmic Measure ◽  
Work Of Deformation ◽  
Crystalline Metal

Abstract Based on the “blocking” theory of the strength of a poly-crystalline metal, a law of work-hardening is derived and checked experimentally on mild steel deformed by wire-drawing up to a deformation of 4.6 in the logarithmic measure. The law correlates the recoverable strain work with the total work of deformation in a series of exponential functions, the number of which corresponds to the number of sizes of crystal grains present in the annealed state.

Investigation of the quality of metal in large forgings formed from steel 25Kh2NMFA in the annealed state

1990 ◽  
Vol 32 (6) ◽  
pp. 453-458
Author(s):  
V. S. Sheiko ◽  
A. V. Koval'chenko ◽  
T. G. Cherednichenko ◽  
G. V. Reunova
Keyword(s):  
Annealed State

scholarly journals Operation corrosion test of austenitic steel bends for supercritical coal boilers

2016 ◽  
Vol 60 (1) ◽  
pp. 21-27
Author(s):  
J. Cizner ◽  
J. Hruška ◽  
J. Mlnařík
Keyword(s):  
Austenitic Steel ◽  
Brown Coal ◽  
Coal Combustion ◽  
Corrosion Test ◽  
Sample Surface ◽  
Corrosion Rates ◽  
Annealed State ◽  
Operation Conditions ◽  
Detailed Assessment

Abstract Corrosion tests of both annealed and not annealed bends of HR3C and S304H steels in operation conditions of black and brown coal combustion boilers in EPRU and EDE. After a long-term exposure, the samples were assessed gravimetrically and metallographically. The comparison of annealed and unannealed states showed higher corrosion rates in the annealed state; corrosion of the sample surface did not essentially differ for compression and tensile parts of the beams. Detailed assessment of both steels is described in detail in this study.

NODULOY

Alloy Digest ◽  
1952 ◽  
Vol 1 (4) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Cast Iron ◽  
Tensile Properties ◽  
Heat Treating ◽  
Ductile Cast Iron ◽  
High Ductility ◽  
High Modulus ◽  
Annealed State ◽  
Shock Resistance

Abstract NODULOY is a magnesium inoculated ductile cast iron in which the graphite is in the nodular form. It offers excellent castability, high mechanical properties, good machinability, pressure tightness, high modulus, and excellent shock resistance. It has extraordinary high ductility in the annealed state. This datasheet provides information on composition, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, and machining. Filing Code: CI-1. Producer or source: Dominion Wheel & Foundries Ltd.

Solute Partitioning and Interfacial Segregation in TiAl-Based Alloys

1998 ◽  
Vol 552 ◽  
Author(s):  
D. J. Larson ◽  
M. K. Miller
Keyword(s):  
Phase Segregation ◽  
Atom Probe ◽  
Heat Treatments ◽  
The Other ◽  
Alloying Additions ◽  
Segregation Behavior ◽  
Annealed State ◽  
The Matrix ◽  
Interfacial Segregation ◽  
Lamellar Interfaces

ABSTRACTAtom probe microscopy has been used to investigate elemental partitioning and segregation behavior in a TiAl-based alloy with a variety of alloying additions including Cr, Nb, W and B. These results indicate that in a stress-relieved state (2 h at 900°C) and a reheated state (2 h at 900°C, 2184 h at 800°C and 2 h at 1210°C) chromium, and to a lesser extent tungsten, is partitioned to the α2 phase. However, in an annealed state (2 h at 900°C and 720 h at 800°C), these elements are partitioned to the, γ phase. Segregation of chromium and tungsten to lamellar interfaces is observed in the stress-relieved material, but significant segregation was not observed in material subjected to the other heat treatments. A W- and B-enriched precipitate was observed in the reheated material and provides a possible explanation for the low tungsten concentrations measured in the matrix phases.

From the as-quenched to the annealed state in icosahedral AlCuFe. effect of phasons on the local order

1991 ◽  
Vol 32 (1-4) ◽  
pp. 81-87 ◽  
Author(s):  
A. Sadoc ◽  
E. Dartyge ◽  
F. Baudelet ◽  
Y. Calvayrac
Keyword(s):  
Local Order ◽  
Annealed State
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