Effect of semi-solid processing on glass forming ability and mechanical properties of Zr60Cu17.5Al7.5 Ni10Ti5 bulk amorphous alloys - 文章详情页

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摘要：

A　bulk　amorphous　alloy　with　diameter　of　3　mm　was　prepared　by　water-cooled　copper　mold　method　through　adding　Ti　element　into　the　matrix　of　Zr60Cu17.5Al7.5　Ni10Ti5.　X-ray　diffractometer　(XRD),　scanning　electron　microscope　(SEM),　differential　scanning　calorimeter　(DSC)　and　micro-electric　universal　testing　machine　were　employed　to　investigate　the　effect　of　semi-solid　technology　on　the　microstructure,　glass　forming　ability,　compression　mechanical　properties　and　facture　surface　of　Zr60Cu17.5Al7.5　Ni10Ti5　bulk　amorphous　alloy.　The　results　indicate　that　the　semi-solid　technology　markedly　affects　the　structure　and　mechanical　properties　of　the　amorphous　material,　and　improves　the　intensity　and　plastic　of　the　alloy.　The　semi-solid　Zr60Cu17.5Al7.5　Ni10Ti5　exhibits　an　excellent　glass　forming　ability,　with　Trg　of　0.6189　and　supercooled　liquid　region　(ΔTx)　of　40　K.　When　the　suction-casting　voltage　is　7　kV,　the　sample　with　the　best　plastic　of　1.94%,　strength　of　1487.411　MPa　is　obtained.

关键词：

Ability testing Aluminum alloys Amorphous alloys Binary alloys Casting Copper alloys Differential scanning calorimetry Glass Mechanical properties Metallic glass Scanning electron microscopy Supercooling Ternary alloys Zircaloy

作者机构：

[ 1 ] [Kou, Sheng-Zhong]State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
[ 2 ] [Kou, Sheng-Zhong]The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Chen, Yan]State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
[ 4 ] [Liu, Guang-Qiao]State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
[ 5 ] [Li, Na]State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
[ 6 ] [Zheng, Bao-Chao]State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
[ 7 ] [Huang, Wen-Jun]State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
[ 8 ] [Suo, Hong-Li]The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China

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kousz@lut.cn

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