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CORROSION RESISTANCE AND MECHANICAL PROPERTIES OF A 140 ksi MIN ALLOY 945X FOR HPHT APPLICATION

机译:适用于HPHT的140 ksi最小合金945X的耐腐蚀性和力学性能

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A newly developed alloy 945X has nominal composition of Fe-53.5Ni-20.5Cr-3Mo-2Cu-4Nb-l.5Ti. The alloy provides 140 ksi (965 MPa) minimum yield strength with an excellent combination of ductility and impact strength in the solution treated and aged condition. Alloy 945X is incorporated in NACE MRO175 / ISO 15156 -3 for level VII and level VI at 450℉ (232C°). This paper covers alloy 945X capabilities for mechanical properties and microstructure. Results are presented on slow strain rate testing (SSRT) on a range of yield strengths and dimensions for rod product. Mechanical properties and corrosion resistance of mechanical tubes are also presented. This data on SSRT is compared with other high strength alloys. In addition, SSRT data and C-ring data of precipitation strengthened alloys is compared in the same environmental conditions.
机译:新开发的945X合金的标称成分为Fe-53.5Ni-20.5Cr-3Mo-2Cu-4Nb-1.5Ti。该合金在固溶处理和时效条件下具有140 ksi(965 MPa)的最低屈服强度,并具有良好的延展性和冲击强度的完美结合。 N945 MRO175 / ISO 15156 -3中结合了945X合金,适用于450℉(232C°)下的VII级和VI级。本文介绍了945X合金的机械性能和微观结构。结果以慢应变速率测试(SSRT)的形式给出了棒材产品的一系列屈服强度和尺寸。还介绍了机械管的机械性能和耐腐蚀性。 SSRT上的数据与其他高强度合金进行了比较。此外,在相同环境条件下比较了沉淀强化合金的SSRT数据和C形环数据。

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