Modification mechanism and tensile property of Al-9Si-0.4Mg-0.1Cu alloy

In this study, some low-titanium aluminum alloys produced by electrolysis were prepared and the effect of various titanium contents on microstructure and tensile property of Zn-Al alloy was investigated. The test results showed that addition of titanium by electrolysis is an effective way to refine the grain size of Zn-Al alloy. As the titanium content is 0.04 wt%, the grain size becomes to be a minimum value and the tensile property of the alloy reaches to the maximum. Electrolysis showed that titanium atoms are to be some inherent particles in low-titanium aluminum alloy. These titanium atoms enter into the aluminum melt liquid and spread to the whole melt rapidly under stirring action of electromagnetic field of the electric current. The heterogeneous phase nuclei are high melting TiC and TiAl3 particles formed from in-situ precipitating trace C and Ti during cooling process. These in-situ precipitating heterogeneous nucleation sites with small dimension, high dispersity, cleaning interface and fine soakage with melt, have better capacity of heterogeneous nucleation than of exotic particles. It may inhibit grain growth faster and more effective in pinning dislocations, grain boundaries or sub-boundaries.

Download Full-text

Optimal spinneret size for improvement of fiber's mechanical property

Thermal Science ◽

10.2298/tsci1305501y ◽

2013 ◽

Vol 17 (5) ◽

pp. 1501-1503 ◽

Cited By ~ 1

Author(s):

Zhanping Yang ◽

Li Zhang ◽

Rou-Xi Chen ◽

Ji-Huan He ◽

Jian-Hua Cao ◽

...

Keyword(s):

Mechanical Property ◽

Cellulose Acetate ◽

Tensile Property ◽

Breaking Energy ◽

Spinning Condition

The effect of spinneret size and place on diameter and tensile property of cellulose acetate fibers is studied, and a criterion for the maximal breaking energy is obtained, and the spinneret distribution can be optimized for each spinning condition.

Download Full-text

States of Carbon Black Dispersion and Extensibility of Rubbers

Rubber Chemistry and Technology ◽

10.5254/1.3538315 ◽

1993 ◽

Vol 66 (2) ◽

pp. 317-328 ◽

Cited By ~ 5

Author(s):

Asahiro Ahagon

Keyword(s):

Carbon Black ◽

Tensile Property ◽

Crosslink Density ◽

Hydrodynamic Effect ◽

Property Variation ◽

Agglomerate Size ◽

Filled Rubber ◽

Two Temperatures ◽

Confined Polymer ◽

Carbon Black Dispersion

Abstract Analysis is made for the origin of the mixing-induced tensile property variation of a filled rubber. Attention is paid to the hydrodynamic effect f(ϕe) of the filler, defined here as the factor to adjust the deviation of 100% modulus from the theory of rubber elasticity. For the rubbers mixed under variety of conditions, the f(ϕe)'s are calculated from the observed values of the modulus, at 25°C and 100°C, and the crosslink density. The variation of the f(ϕe) is considered to be governed by the mobility of the polymer confined in agglomerates of the filler. The mobility variation due to mixing seems to be mainly influenced by agglomerate size at 25°C, and by agglomerate size and chemical constraints at 100°C. Therefore, the f(ϕe)'s at the two temperatures are suggested to be useful measures of the state of carbon-black micro-dispersion. The extensibility of the rubbers is closely related f(ϕe). This indicates that the failure property is also governed by the mobility of the confined polymer.

Download Full-text

Effect of extrusion temperature on the microstructure and tensile property of 2D-Cf/Al composites by liquid extrusion infiltration

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-017-0998-2 ◽

2017 ◽

Vol 94 (1-4) ◽

pp. 1349-1355 ◽

Cited By ~ 3

Author(s):

Y. Q. Ma ◽

L. H. Qi

Keyword(s):

Tensile Property ◽

Extrusion Temperature

Download Full-text

Effects on the Properties of Polyethylene Film Aging by Different Methods

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.830.49 ◽

2013 ◽

Vol 830 ◽

pp. 49-52 ◽

Cited By ~ 2

Author(s):

Chen Li ◽

Sheng Ling Xiao

Keyword(s):

Tensile Strength ◽

Pilot Study ◽

Tensile Property ◽

Thermal Aging ◽

Air Permeability ◽

Polyethylene Film ◽

Use Value ◽

Moisture Permeability ◽

Ultraviolet Aging

Aging of plastics occurs in use, it makes the performance degrade, and losing use value finally. In order to compare ultraviolet aging with thermal aging, we carry out a pilot study on the performance changes of PE film. The results demonstrated that the tensile property became lower under two aging methods, the tensile property during the thermal aging decreased by 6.07% but it was 15.08% in the ultraviolet aging at 120h, obviously the effects of the ultraviolet aging on the tensile strength were more significant, it declined faster. The air permeability curves were on the rise under the two aging methods, the results demonstrated that the effect of the ultraviolet aging on the air permeability rose slightly more than the thermal aging. The moisture permeability curves decreased firstly and then increased, but the values of the ultraviolet aging were higher.

Download Full-text

The Tensile Property of the SPF/Cotton Blended Yarn

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.321.192 ◽

2011 ◽

Vol 321 ◽

pp. 192-195

Author(s):

Qing Bin Yang ◽

Xiao Yang

Keyword(s):

Experimental Data ◽

Simple Model ◽

Tensile Property ◽

Cotton Fibers ◽

Blended Yarn ◽

The Difference ◽

The Relationship

In order to analysis the relationship between the strength and elongation and the blended ratio of SPF/Cotton blended yarn, the strength and elongation of SPF /cotton blended yarn with different blended ratio were measured and compared with the simple model. The results indicated that For the SPF/cotton blended yarn, the difference between the experimental data and the model value is remarkable because of the high cohesion of the cotton fibers.

Download Full-text