Effects of nanosized TiCp dispersion on the high-temperature tensile strength and ductility of in situ TiCp/Al-Cu-Mg-Si nanocomposites

ABSTRACTCu-Nb composite wires were produced from powder, electrolytically coated with tin and annealed to convert the Nb fibres to Nb 3Sn. The content was varied between 10 wt % and 40 wt %. The superconducting properties of the wires were determined. The mechanical properties, tensile strength, yield strength and ductility were measured as a function of volume fraction and deformation over a wide temperature range. The results are compared with those for wires produced by different techniques.

Download Full-text

The High-Temperature Tensile Test of Quartz Fiber Fabric- Reinforced Resin Composites

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.904.188 ◽

2021 ◽

Vol 904 ◽

pp. 188-195

Author(s):

Hua Qiong Wang ◽

Li Li Zhang ◽

Da Cheng Jiao ◽

Yan Ru Wang ◽

Zeng Hua Gao

Keyword(s):

Tensile Strength ◽

High Temperature ◽

Tensile Test ◽

Tensile Properties ◽

Tensile Modulus ◽

National Standard ◽

Resin Composites ◽

Quartz Fiber ◽

High Temperature Tensile ◽

Fiber Fabric

The tensile properties of quartz fiber fabric-reinforced resin composites at high temperature were studied. The effects of specimen type and dimension, temperature loading procedure, holding time and loading rate on the tensile properties of the composites at high temperatures were analyzed through series of comparative experiments, the tensile test parameters were determined. Chinese national standard for high-temperature tensile property testing of the composites was compiled based on the data collected. According to the established standard, the tensile testing at 500°C was carried out. Compared with the tensile properties at room temperature, the tensile strength and tensile modulus of the composite at high temperature decreases significantly, with the tensile strength decreasing by about 42.32% and the tensile modulus decreasing by about 24.18%. This is mainly due to the high temperature which causes part of the resin matrix to pyrolyze and detach from around the fiber, thus losing the integrity of the material. In addition, this national standard for high-temperature tensile properties has some general applicability to different types of fiber-reinforced resin composites.

Download Full-text

Influence of magnetic arc oscillation and current pulsing on microstructure and high temperature tensile strength of alloy 718 TIG weldments

Materials Science and Engineering A ◽

10.1016/j.msea.2006.05.046 ◽

2006 ◽

Vol 428 (1-2) ◽

pp. 327-331 ◽

Cited By ~ 21

Author(s):

K. Sivaprasad ◽

S. Ganesh Sundara Raman ◽

P. Mastanaiah ◽

G. Madhusudhan Reddy

Keyword(s):

Tensile Strength ◽

High Temperature ◽

Alloy 718 ◽

High Temperature Tensile

Download Full-text

Effects of Si content on the microstructure and tensile strength of an in situAl/Mg2Si composite

Journal of Materials Research ◽

10.1557/jmr.1999.0012 ◽

1999 ◽

Vol 14 (1) ◽

pp. 68-74 ◽

Cited By ~ 58

Author(s):

Jian Zhang ◽

Yu-qing Wang ◽

Bing Yang ◽

Ben-lian Zhou

Keyword(s):

Tensile Strength ◽

Metal Matrix ◽

Die Casting ◽

Solidification Process ◽

Matrix Composites ◽

Fracture Characteristics ◽

Casting Technique ◽

Si Content ◽

Strength And Ductility

Al/Mg2Si composites were in situ fabricated by the usual die-casting technique, and effects of the Si contents in the composites on microstructures and tensile strengths were investigated. Experimental results show that extra Si contents in Al/Mg2Si composites induce a ductile matrix and a uniform distribution of in situ particles. The refined microstructures lead to an obvious increase in both strength and ductility of the metal matrix composites (MMCs). The effects of extra Si on both the solidification process and fracture characteristics of the Al/Mg2Si composites were analyzed.

Download Full-text

Microstructure and Mechanical Properties of Mg-Based Composites Reinforced with TiB2 Particles

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.900.141 ◽

2014 ◽

Vol 900 ◽

pp. 141-145 ◽

Cited By ~ 1

Author(s):

Can Feng Fang ◽

Guang Xu Liu ◽

Ling Gang Meng ◽

Xing Guo Zhang

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Composite Material ◽

High Temperature ◽

The Self ◽

Al Alloy ◽

Temperature Synthesis ◽

Microstructure And Mechanical Properties ◽

High Temperature Synthesis

The effects of in-situ TiB2 particle fabricated from Al-Ti-B system via the self-propagating high-temperature synthesis (SHS) reaction technology on microstructure and mechanical properties of Mg-Sn-Zn-Al alloy were investigated. The results indicate that the size of the Mg2Sn and α-Mg+Mg32(Al,Zn)49 phase becomes coarser with the increasing content of Al-Ti-B preform, meanwhile the amount of eutectic α-Mg+Mg32(Al,Zn)49 phase increases too. The addition of Al-Ti-B is favorable toward promoting the strength of composites, but deteriorates elongation. The resulting as-extruded composite material with 4 wt.% Al-Ti-B preform exhibits good overall mechanical properties with an ultimate tensile strength of 291 MPa and an elongation over 2 %.

Download Full-text