Effects of surface characteristics of F-12 polymeric fibers on the mechanical properties of F-12/epoxy composites

Wang, Bin; Jin, Zhihao; Qiu, Zheming; Liu, An-Hua

doi:10.1016/j.msea.2006.09.179

Cited by 1 publication

(1 citation statement)

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“…20CrMnTiH has an advantageous combination of strength and toughness, and it is to ensure the hardenability comparing with 20CrMnTi. The relationship between the chemical composition and hardenability(J 9 , J 15 ) and mechanical properties(tensile strength b σ , yield strength s σ and impact energy k α ) was analyzed with the regression method, and the smelting constituent content of major alloying elements in this steel had been established [1,2]. By using neural networks, the relationship between chemical composition and hardenability was built and the prediction result was more precise than the simple regression model [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Processing Parameters on the Hot Compressive Deformation Behavior of 20CrMnTiH

Zhang

Zhao

et al. 2011

AMR

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20CrMnTiH is widely used as gear steel because of its good hardenability. Based on the Taguchi technique, an L9 orthogonal array was arranged, and the three main process parameters were deformation temperature, strain rate and strain, and their levels were in the range of 850oC~1050oC, 0.1 s-1~10s-1 and 0.2~0.8 respectively. Nine hot compression tests were carried out on a GLEEBLE 1500 simulator, and the stress-strain curves and microstructures were investigated. The experimental results showed that deformation temperature was the most significant parameter of flow stress maximum followed by strain rate and strain, and the impact significant degree of on the grain size after compression was shown in the following: deformation temperature > strain > strain rate.

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Section: Introductionmentioning

confidence: 99%