کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1635864 | 1516961 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure, mechanical properties and wear behaviour of Zn-Al-Cu-TiB2 in situ composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Zn-Al-Cu-TiB2 (ZA27-TiB2) in situ composites were fabricated via reactions between molten aluminum and mixed halide salts (K2TiF6 and KBF4) at temperature of 875 °C. The microstructure, mechanical properties and wear behavior of the composites were investigated. Microstructure analysis shows that fine and clean TiB2 particles distribute uniformly through the matrix. The mechanical properties of the composites increase with the increase in TiB2 content. As TiB2 content increases to 5% (mass fraction), an improvement of HB 18 in hardness and 49 MPa in ultimate tensile strength (UTS) is achieved. The overall results reveal that the composites possess low friction coefficients and the wear rate is reduced from 5.9Ã10â3 to 1.3Ã10â3 mm3/m after incorporating 5% TiB2. Friction coefficient and worn surface analysis indicate that there is a change in the wear mechanism in the initial stage of wear test after introducing in situ TiB2 particles into the matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 25, Issue 1, January 2015, Pages 103-111
Journal: Transactions of Nonferrous Metals Society of China - Volume 25, Issue 1, January 2015, Pages 103-111
نویسندگان
Fei CHEN, Tong-min WANG, Zong-ning CHEN, Feng MAO, Qiang HAN, Zhi-qiang CAO,