Rational Alloy Design of Niobium-Bearing HSLA Steels
نویسندگان
چکیده
منابع مشابه
Microstructure Evolution of HSLA Pipeline Steels after Hot Uniaxial Compression
The mechanical properties of the high-strength low-alloy pipeline steels were mainly controlled by the subsequent phase transformations after rolling. The influence of hot uniaxial compression on the phase transformation of acicular ferrite was explored by viewing of the deformation degree, the deformation temperature, and the strain rate. The results show that the increase of deformation amoun...
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This paper deals with the influence of steel composition (with respect to the microalloying elements) and therrnomechanical treatment on structure and mechanical behaviour of HSLA (High Strength Low Alloy) steels. Four different microalloyed steels have been TM rolled under variing conditions. The austenite structure prior to transformation could be revealed by means of a special etching techni...
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Micro-alloyed High Strength Low Alloy steels (HSLA-steels) are widely used in civil construction, automobile and line pipe applications. They contain small quantities of alloying elements between 0,01 – 0,1 wt%, such as Niobium, Titanium, Vanadium, Aluminium and Nitrogen. These steels rely on thermo-mechanical rolling, a technique that simultaneously provides high strength, excellent toughness ...
متن کاملElectron Pairing in Ferroelectric Niobium and Niobium Alloy Clusters
Cryogenic molecular beam experiments show that the ferroelectric dipole moments of small niobium clusters with an even number of valence electrons n are typically greater than those with odd n. This is verified in alloy clusters NbNXM where X = Al, Au, O, Mn, Fe, and Co; N ≤ 100;M ≤ 3. Like in superconducting alloys, Mn doping quenches the effect while Al and Au enhance it, suggesting a relatio...
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A study was made of the preparation of a uranium 10 w/o niobium alloy by the bomb reduction of a suitable form of niobium and uranium tetrafluoride with calcium. A compound with a probable formula of Na2NbOF5 proved to be most satisfactory as the source of niobium. High yields and good metal-slag separations were obtained. Chemical analysis and density determinations showed the composition to b...
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ژورنال
عنوان ژورنال: Metals
سال: 2020
ISSN: 2075-4701
DOI: 10.3390/met10030413