Spark plasma sintering and spark plasma upsetting of an Al-Zn-Mg-Cu alloy

被引：10
|
作者：
Tuncay, Mehmet Masum [1 ,2 ]
Muniz-Lerma, Jose Alberto [1 ]
Bishop, Donald Paul [3 ]
Brochu, Mathieu [1 ]
机构：
[1] McGill Univ, Dept Min & Mat Engn, 3610 Univ St, Montreal, PQ H3A 0C5, Canada
[2] Marmara Univ, Dept Met & Mat Engn, TR-34722 Istanbul, Turkey
[3] Dalhousie Univ, Dept Proc Engn & Appl Sci, 1360 Barrington St, Halifax, NS B3J 1Z1, Canada
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 704卷
关键词：
Spark plasma sintering; Forging; Al alloys; Mechanical properties; 7075; ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; DYNAMIC RECRYSTALLIZATION; MICROSTRUCTURAL EVOLUTION; POWDER; CONSOLIDATION; BEHAVIOR; OXIDE; PRECIPITATION; PARTICLES;
D O I：
10.1016/j.msea.2017.08.015
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Al-Zn-Mg-Cu alloy powder Alumix 431D was sintered at 400 degrees C by spark plasma sintering (SPS) and upset forging was applied to the sintered sample through SPS. Densities of 99.1 +/- 0.3% and 99.8 +/- 0.1% of theoretical were obtained for the sintered and forged samples, respectively. T6 temper was carried out on the samples and microstructure analysis and mechanical properties before and after heat treatment were evaluated. Microhardness of 173 +/- 3 and 172 +/- 3 HV were attained in the T6 temper of as-sintered and forged samples, respectively. The flexural strength and strain values were significantly improved after the forging process, which can be mainly attributed to the better particle bonding in addition to the occurrence of some recrystallization. Significant loss in the ductility was observed after the T6 temper.
引用
收藏
页码：154 / 163
页数：10
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