Influence of sinter-cooling rate on the mechanical properties of powder metallurgy austenitic, ferritic, and duplex stainless steels sintered in vacuum

被引：39
作者：
Martin, F. [1 ]
Garcia, C. [1 ]
Blanco, Y. [1 ]
Rodriguez-Mendez, M. L. [2 ]
机构：
[1] Univ Valladolid, Mat Engn, EII, E-47011 Valladolid, Spain
[2] Univ Valladolid, Dept Inorgan Chem, EII, E-47011 Valladolid, Spain
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 642卷
关键词：
Mechanical characterization; Hardness measurement; Steel; Powder metallurgy; Hardening; NITROGEN-HYDROGEN ATMOSPHERE; CORROSION BEHAVIOR; TEMPERATURE; RESISTANCE; DENSITY;
D O I：
10.1016/j.msea.2015.06.097
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Austenitic, ferritic and duplex stainless steels obtained through powder metallurgy technology were sintered in vacuum. Powders were compacted at 650 or 750 MPa and sintered in vacuum with two sinter-cooling rates (furnace- and water-cooling). Mechanical properties, using tensile testing and hardness measurements were evaluated. A full microstructural study of the three types of stainless steels was performed. The mechanical behavior was a function of the sinter-cooling rate and the chemical composition. Duplex stainless steel showed the best mechanical behavior. The use of high compaction pressure and water-cooling process promoted the best mechanical results for all compositions. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：360 / 365
页数：6
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