scholarly journals Effect of Alloying Elements on the Cold Deformation Behavior of Cr Phase and the Tensile Strength of Cu-15Cr Based In Situ Composites

2001 ◽  
Vol 42 (6) ◽  
pp. 1007-1014 ◽  
Author(s):  
Shoujin Sun ◽  
Shigeki Sakai ◽  
Hirowo G. Suzuki
Keyword(s):  
Tensile Strength ◽  
Deformation Behavior ◽  
Cold Deformation ◽  
Alloying Elements ◽  
In Situ Composites ◽  
Effect Of Alloying

Effect of Alloying Elements on the Mechanical Properties of Cu-15%Cr In Situ Composites

2003 ◽  
Vol 437-438 ◽  
pp. 145-148
Author(s):  
H.G. Suzuki ◽  
K. Mihara ◽  
S. Sakai ◽  
S. Sun ◽  
J. Ma
Keyword(s):  
Mechanical Properties ◽  
Alloying Elements ◽  
In Situ Composites ◽  
Effect Of Alloying

scholarly journals Microstructure and Strengthening Model of Cu–Fe In-Situ Composites

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3464
Author(s):  
Keming Liu ◽  
Xiaochun Sheng ◽  
Qingpeng Li ◽  
Mengcheng Zhang ◽  
Ningle Han ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cold Deformation ◽  
Strengthening Mechanism ◽  
Strengthening Mechanisms ◽  
Petch Relation ◽  
In Situ Composites ◽  
Deformation Strain ◽  
Strength Evolution ◽  
The Matrix

The tensile strength evolution and strengthening mechanism of Cu–Fe in-situ composites were investigated using both experiments and theoretical analysis. Experimentally, the tensile strength evolution of the in-situ composites with a cold deformation strain was studied using the model alloys Cu–11Fe, Cu–14Fe, and Cu–17Fe, and the effect of the strain on the matrix of the in-situ composites was studied using the model alloys Cu–3Fe and Cu–4.3Fe. The tensile strength was related to the microstructure and to the theoretical strengthening mechanisms. Based on these experimental data and theoretical insights, a mathematical model was established for the dependence of the tensile strength on the cold deformation strain. For low cold deformation strains, the strengthening mechanism was mainly work hardening, solid solution, and precipitation strengthening. Tensile strength can be estimated using an improved rule of mixtures. For high cold deformation strains, the strengthening mechanism was mainly filament strengthening. Tensile strength can be estimated using an improved Hall–Petch relation.

scholarly journals Study on Microstructure and In Situ Tensile Deformation Behavior of Fe-25Mn-xAl-8Ni-C Alloy Prepared by Vacuum Arc Melting

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 814
Author(s):  
Yaping Bai ◽  
Meng Li ◽  
Chao Cheng ◽  
Jianping Li ◽  
Yongchun Guo ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Deformation Behavior ◽  
Tensile Deformation ◽  
Austenite Phase ◽  
Vacuum Arc ◽  
Al Content ◽  
Arc Melting ◽  
Vacuum Arc Melting ◽  
Tensile Deformation Behavior

In this study, Fe-25Mn-xAl-8Ni-C alloys (x = 10 wt.%, 11 wt.%, 12 wt.%, 13 wt.%) were prepared by a vacuum arc melting method, and the microstructure of this series of alloys and the in situ tensile deformation behavior were studied. The results showed that Fe-25Mn-xAl-8Ni-C alloys mainly contained austenite phase with a small amount of NiAl compound. With the content of Al increasing, the amount of austenite decreased while the amount of NiAl compound increased. When the Al content increased to 12 wt.%, the interface between austenite and NiAl compound and austenitic internal started to precipitate k-carbide phase. In situ tensile results also showed that as the content of Al increased, the alloy elongation decreased gradually, and the tensile strength first increased and then decreased. When the Al content was up to 11 wt.%, the elongation and tensile strength were 2.6% and 702.5 MPa, respectively; the results of in situ tensile dynamic observations show that during the process of stretching, austenite deformed first, and crack initiation mainly occurred at the interface between austenite and NiAl compound, and propagated along the interface, resulting in fracture of the alloy.

Distribution of Alloying Elements over the Phase Constituents in Nb–Si in situ Composites

2018 ◽  
Vol 2018 (3) ◽  
pp. 276-281
Author(s):  
N. A. Kuz’mina ◽  
I. L. Svetlov ◽  
A. V. Neiman
Keyword(s):  
Alloying Elements ◽  
In Situ Composites

Effect of Iron Content on the Strength and Conductivity of Cu-Fe In Situ Composite

2014 ◽  
Vol 633-634 ◽  
pp. 63-67
Author(s):  
Ke Ming Liu ◽  
Z.Y. Jiang ◽  
Yong Hua Wang ◽  
Z.B. Chen ◽  
Jing Wei Zhao ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Tensile Strength ◽  
Cold Deformation ◽  
Testing Machine ◽  
Optical Microscope ◽  
Good Combination ◽  
Mechanical Processing ◽  
Tensile Testing Machine ◽  
In Situ Composite

Cu-14Fe and Cu-17Fe alloys were produced by casting and processed into in situ composites by hot and cold deformation, and intermediate heat treatment. The microstructures were investigated by using a scanning electron microscope and an optical microscope. The electrical conductivity was evaluated by using a digital micro-ohmmeter. The tensile strength was measured by using an electronic tensile-testing machine. The results show that there are similar cast and deformation microstructures in Cu-14Fe and Cu-17Fe. The tensile strength of deformation-processed Cu-17Fe in situ composite is much higher than that of Cu-14Fe, while the conductivity of deformation-processed Cu-17Fe in situ composite is slightly lower than that of Cu-14Fe at the same cold deformation strain. The Cu-17Fe in situ composite produced by using proper thermo-mechanical processing possesses a good combination of tensile strength and electrical conductivity.

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