Effect of cold plastic strain on the mechanical properties of sintered iron

1984 ◽  
Vol 26 (7) ◽  
pp. 537-540 ◽  
Author(s):  
V. D. Kal'ner ◽  
B. I. Beilin ◽  
Ya. V. Shubert
Keyword(s):  
Mechanical Properties ◽  
Plastic Strain ◽  
Sintered Iron

Effects of Cold-Rolling Reduction on Microstructure and Mechanical Properties of Ti50Zr30Nb10Ta10 Alloy

2016 ◽  
Vol 849 ◽  
pp. 376-381
Author(s):  
Ming Long Li ◽  
Yu Jie Geng ◽  
Chen Chen ◽  
Shu Jie Pang ◽  
Tao Zhang
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Plastic Strain ◽  
Cold Rolling ◽  
Reduction Ratio ◽  
High Fracture ◽  
Dendrite Structure ◽  
Microstructure And Mechanical Properties ◽  
Cold Rolling Reduction ◽  
Cold Rolled

The effects of cold-rolling with different reduction ratios of 70%-90% on the microstructure and mechanical properties of Ti50Zr30Nb10Ta10 alloy were investigated. It was found that the β-Ti phase in this alloy was stable under cold-rolling. With the increase in reduction ratio from 70% to 90%, the microstructure of the alloys evolved from deformed dendrite structure to fiber-like structure. The alloy cold-rolled with the reduction ratio of 70% exhibited optimum mechanical properties of combined high fracture strength of 1012 MPa and plastic strain of 10.1%, which are closely correlated with the dendrite structure of the alloy. It is indicated that the proper cold-rolling is an effective way to improve the mechanical properties of the titanium alloy.

An Assessment of the Method Used to Determine Activation Parameters in L12 Alloys

1998 ◽  
Vol 552 ◽  
Author(s):  
B. Matterstock ◽  
G. Saada ◽  
J. Bonneville ◽  
J. L Martin
Keyword(s):  
Mechanical Properties ◽  
Theoretical Analysis ◽  
Plastic Strain ◽  
Strain Rate ◽  
Characteristic Time ◽  
Constant Strain Rate ◽  
Activation Parameters ◽  
Plastic Strain Rate ◽  
Clear Indication ◽  
Load Relaxation

ABSTRACTThe characterisation of dislocation mechanisms in connection with macroscopic mechanical properties are usually performed through transient tests, such as strain-rate jumps, load relaxations or creep experiments. The present paper includes a careful and complete theoretical analysis of the relaxation and the creep kinetics. We experimentally show that the plastic strain-rate is continuous at the transition between constant strain-rate conditions and both load relaxation and creep test. The product of the plastic strain-rate at the onset of the transient test () with the characteristic time (tk) of the transient is found to be independent of , as theoretically expected. This is a clear indication that the assumptions underlying the theoretical analysis are relevant.

Microstructure Evolution and Mechanical Properties of Mg-Gd-Y-Zn-Zr Alloy during Compression

2021 ◽  
Vol 1035 ◽  
pp. 278-285
Author(s):  
Lei Chen Jia ◽  
Jian Min Yu ◽  
Guo Qin Wu ◽  
Wen Long Xu ◽  
Yong Gang Tian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Plastic Strain ◽  
Microstructure Evolution ◽  
Large Angle ◽  
Compression Behavior ◽  
Kink Bands ◽  
Long Period ◽  
Different Temperatures ◽  
Compression Temperature ◽  
Zr Alloy

The compression behavior and mechanical properties of the Mg-13Gd-4Y-2Zn-0.5Zr (wt.%) alloy filled with intragranular long-period stacking ordered (LPSO) phases at different temperatures were investigated. The results showed that the higher the compression temperature, the smaller the plastic strain that the grains withstand. The grains changed from equiaxed to flat strips when compressed at 350°C, and the morphology of the grains did not change at 450°C. Due to the existence of DRX grains, compression at 450 °C didn’t cause large-angle kink, but the kink angle at 350°C was very large. DRX grains only appeared at the grain boundaries and around the intergranular LPSO phase at the beginning of compression, and only appear at the kink bands (KBs) after the lamellar LPSO phases begin to kink. DRX grains gradually increased with the KBs increasing.

Mechanism for Improving the Mechanical Properties of Sintered Iron–Copper Composites Alloyed with Molybdenum

2017 ◽  
Vol 56 (7-8) ◽  
pp. 370-378 ◽  
Author(s):  
V. V. Skorokhod ◽  
O. I. Getman ◽  
V. V. Panichkina ◽  
P. Ya. Radchenko ◽  
O. I. Bykov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sintered Iron ◽  
Iron Copper

Texture Changes of Asymmetrically Rolled AA 1050 Al Alloy Sheets

2011 ◽  
Vol 702-703 ◽  
pp. 332-335 ◽  
Author(s):  
Jin Hyuk Lee ◽  
In Soo Kim
Keyword(s):  
Mechanical Properties ◽  
Plastic Strain ◽  
Cube Texture ◽  
Al Alloy ◽  
Asymmetrical Rolling

Texture of Al alloy is affected to the formability and mechanical properties. In this paper, it was studied that the change of texture and formability of AA 1050 Al alloy sheets which were asymmetrically rolled. Asymmetrically rolled Al sheets showed that the distorted rotated cube texture, {001}, γ-fiber, ND// and {120} and {120} components were increased. The change of texture components after the asymmetrical rolling could be affected to the variation of plastic strain ratios of the asymmetrically rolled AA 1050 Al alloy sheets.

Effect of Strain History on Steel Tube Umbilical

2007 ◽  
Author(s):  
Alan Dobson
Keyword(s):  
Mechanical Properties ◽  
Plastic Strain ◽  
Low Cycle Fatigue ◽  
Steel Tube ◽  
Fatigue Properties ◽  
Strain History ◽  
Stress Cracking ◽  
Induced Stress ◽  
The Impact ◽  
Strain Cycling

The effect of repeated plastic strain on the mechanical properties of reeled super duplex tube used in the construction of umbilical riser systems is assessed. The impact of typical plastic strain cycles on the fatigue properties of tubing, mechanical properties of the tubing and the susceptibility of hydrogen embrittlement of the tubing has been investigated. There is evidence that plastic strain cycles have an effect upon the fatigue life of the tube; which can be attributed to a low cycle fatigue mechanism. There is no evidence that plastic strain cycling to specified limits has an effect upon the susceptibility of the material to Hydrogen Induced Stress Cracking (HISC) and typical plastic strain cycles have no degenerative effect upon the mechanical properties of super duplex tube and radial welds.

scholarly journals Mechanical Properties of Sintered Iron Sheets Containing Reduced Iron Powder with Gangue

1980 ◽  
Vol 66 (3) ◽  
pp. 372-381 ◽  
Author(s):  
Yoshikazu SUZUKI ◽  
Sogo SAYAMA ◽  
Keizo NISHIDA
Keyword(s):  
Mechanical Properties ◽  
Iron Powder ◽  
Sintered Iron ◽  
Reduced Iron Powder
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