|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Oil and Gas and AMREE Oil & Gas III
||Advanced Duplex Stainless Steels for Extreme Oil-Gas Environments
||Pasi Kangas , Guocai Chai
|On-Site Speaker (Planned)
In oil-gas industry, the exploration of new reservoirs will target to those with high pressures and high temperatures or in deep water. This requires that the materials used should have a combination of excellent corrosion resistance and extra high strength that can bear its own weight. In order to meet these challenges, some new advance steels namely hyper duplex stainless steels have recently been developed. These materials have a nitrogen content up to about 0.5% and PRE-values close to 50, and show a combination of highest corrosion resistance or CPT and highest strength among the existing duplex stainless steels. This paper provides an overview on the development and properties of these materials. It will mainly focus the influence of composition and microstructures on the corrosion and mechanical properties. The ratios of properties/cost and strength/weight will be compared with Ni based alloys and other steels. Their applications are also discussed.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)