Strengthening of AISI 2205 duplex stainless steel by strain ageing
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- 作者：Tuba Karahan ; Hayriye Ertek Emre ; Mustafa T眉mer ; Ramazan Ka莽ar
- 关键词：Static strain ageing ; Duplex stainless steel ; Tensile strength ; Strength due to ageing ; Elongation fracture
- 刊名：Materials and Design
- 出版年：March, 2014
- 年：2014
- 卷：55
- 期：Complete
- 页码：250-256
- 全文大小：1915 K
文摘
In this study, static strain ageing behavior of commercially available and solution heat treated duplex stainless steel was investigated and the effect of static strain ageing on the mechanical properties was also determined in detail. Some of as-received duplex stainless steel test specimens were pre-strained in tension by 5% and then aged at 100 掳C, 200 掳C, 300 掳C, 400 掳C, 500 掳C and 600 掳C for 30 min in furnace. Some of duplex stainless steel test specimens were solution heat treated at 1050 掳C for 30 min, water quenched and then pre-strained for 5% in tension shortly after the solution heat treatment.
In order to identify the effect of static strain ageing on the mechanical properties, the tensile strength, the change in the strength due to ageing (螖Y), elongation fracture and hardness were determined. The test results showed that the mechanical properties were affected by static strain ageing mechanism which was applied at different temperatures for same time interval.