Processing of high strength EN AW 6082 forgings without a solution heat treatment

被引：34
|
作者：
Birol, Yucel [1 ]
Gokcil, Emre [2 ]
Guvenc, Mehmet Ali [2 ]
Akdi, Seracettin [2 ]
机构：
[1] Dokuz Eylul Univ, Dept Met & Mat Engn, Izmir, Turkey
[2] R&D Ctr, AYD Steering & Suspens Parts, Selcuklu, Konya, Turkey
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 674卷
关键词：
Aluminium alloys; Hardness measurement; Mechanical characterization; Light microscopy; Thermomechanical processing; Age hardening; MG-SI ALLOYS; DISPERSOID CONTENT; GRAIN-STRUCTURE; EXTRUDED STOCK; AL-ALLOYS; CAST;
D O I：
10.1016/j.msea.2016.07.062
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Light weight EN AW 6082 alloy forgings are used extensively in automotive suspension components. The conventional production cycle involves a solution heat treatment that is responsible not only for coarse surface grains, potentially degrading for fatigue properties, but also for microstructural features that reduce the impact toughness. The separate solution treatment may be omitted if hot forging operation is fine tuned to solutionize sufficient Mg and Si during forging to offer adequate age hardening during the subsequent artificial ageing cycle. Uniform structures with a predominantly fine fibrous core thus obtained, ensure better fatigue and impact properties and a longer service life. The proposed process not only improves the quality of the automotive suspension components but also offers significant cost savings. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：25 / 32
页数：8
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