Exxonmobil Research and Engineering Company

Posco

Posco Co., Ltd

Poseo

Exxonmobil Upstream Research Company

Exxonmobil Technology and Engineering Company

Hyunwoo Jin

Douglas Paul Fairchild

Andrew J Wasson

Bongkeun Lee

Jongsub Lee

Sangchul Lee

IlWook Han

Adnan Ozekcin

Narasimha-Rao Venkata Bangaru

Charles S Yeh

Ning Ma

Xin Yue

Jeffrey Roberts Bailey

Michael Thomas Hecker

Michael D Barry

Timothy D Anderson

Jeffrey R Bailey

IIWook Han

Raghavan Ayer

Iiwook Han

Mehmet Deniz Ertas

Hak-Cheol Lee

Tabassumul Haque

In-Shik Suh

Srinivasan Rajagopalan

Vishwas Gupta

Jong-Kyo Choi

Bo Zhao

Russell R Mueller

Erika Biediger

William C Elks

Erika A Ooten Biediger

Charles Yeh

Russell Robert Mueller

Charles Shioa-Hsiung Yeh

Narasimha-Rao (deceased) Bangaru

William Elks

Erika A Biediger

Welding compositions for high manganese steel base metals, the composition comprising: carbon in a range of about 0.4 wt % to about 0.8 wt %; manganese in a range of about 18 wt % to about 24 wt %; chromium in an amount of about 6 wt %; molybdenum in an amount of about <4 wt %; nickel in an amount of about <5 wt %; silicon in an amount of about 0.4 wt % to about 1.0 wt %; sulfur in an amount of about <200 ppm; phosphorus in an amount of about <200 ppm; and the balance comprising iron.

Field girth welding technology for high manganese steel slurry pipelines

Methods of welding high manganese steel, the methods comprising: supplying at least one piece of high manganese steel; supplying the metal cored wire comprising a steel sheath with a core comprising powders of certain metal and carbon percentages and at least one of: i: sulfur in an amount less than 0.3 wt. %; or ii. phosphorous in an amount less than 0.03 wt. %; or a combination thereof; and the balance with iron; submerging the at least one piece of high manganese steel in a slag and arc stabilizer; and applying a current to the metal cored wire to produce a liquid alloy steel composition on the at least one piece of high manganese steel.

Methods of welding high manganese steel with step-out weld zone erosion-corrosion resistance

A metal cored wire for submerged arc welding, the wire comprising a steel sheath with a core comprising powders of: carbon in a range of about 0.3 wt. % to about 1.2 wt. %; silicon in a range of about 0.1 wt. % to about 3.0 wt. %; manganese in a range of about 9.0 wt. % to about 30 wt. %; chromium in an amount less than about 8 wt. %; nickel in an amount less than about 6 wt. %; molybdenum in an amount less than about 6 wt. %; tungsten in an amount less than about 5 wt. %; copper in an amount less than about 4 wt. %; niobium in an amount less than about 2 wt. %; vanadium in an amount less than about 2 wt. %; titanium in an amount less than about 2 wt. %; nitrogen in an amount less than about 0.4 wt. %; boron in an amount less than about 1 wt. %; at least one of: (i) sulfur in an amount less than about 0.3 wt. %; (ii) phosphorous in an amount less than about 0.03 wt. %; or a combination thereof; and the balance with iron.

High manganese steel pipe with step-out weld zone erosion-corrosion resistance and method of making the same

Improved steel compositions and methods of making the same are provided. The present disclosure provides advantageous wear resistant steel. More particularly, the present disclosure provides high manganese (Mn) steel having enhanced wear resistance, and methods for fabricating high manganese steel compositions having enhanced wear resistance. The advantageous steel compositions/components of the present disclosure improve one or more of the following properties: wear resistance, ductility, crack resistance, erosion resistance, fatigue life, surface hardness, stress corrosion resistance, fatigue resistance, and/or environmental cracking resistance. In general, the present disclosure provides high manganese steels tailored to resist wear and/or erosion.

Enhanced wear resistant steel and methods of making the same

The present disclosure relates to a welding composition for joining high manganese steel base metals to low carbon steel base metals, as well as systems and methods for the same. The composition includes: carbon in a range of about 0.1 wt % to about 0.4 wt %; manganese in a range of about 15 wt % to about 25 wt %; chromium in a range of about 2.0 wt % to about 8.0 wt %; molybdenum in an amount of &#x2264; about 2.0 wt %; nickel in an amount of &#x2264; about 10 wt %; silicon in an amount of &#x2264; about 0.7 wt %; sulfur in an amount of &#x2264; about 100 ppm; phosphorus in an amount of &#x2264; about 200 ppm; and a balance comprising iron. In an embodiment, the composition has an austenitic microstructure.

Field dissimilar metal welding technology for enhanced wear resistant high manganese steel

The present disclosure relates to a welding composition for joining high manganese steel base metals and methods of applying the same. The composition includes: carbon in a range of about 0.4 wt % to about 0.8 wt %; manganese in a range of about 18 wt % to about 24 wt %; chromium in an amount of &#x2264; about 6 wt %; molybdenum in an amount of &#x2264; about 4 wt %; nickel in an amount of &#x2264; about 5 wt %; silicon in an amount of about 0.4 wt % to about 1.0 wt %; sulfur in an amount of &#x2264; about 200 ppm; phosphorus in an amount of &#x2264; about 200 ppm; and a balance including iron. In an embodiment, the composition has an austenitic phase.

Improved steel welds, article for making the same, and methods of making the same are provided. The present disclosure provides advantageous erosion, corrosion and/or cracking resistant weld metal. More particularly, the present disclosure provides high manganese (Mn) weld metal compositions having enhanced erosion, corrosion and/or cracking resistance, articles for the production of the high manganese weld metal compositions having enhanced erosion, corrosion, and/or cracking resistance, and methods for fabricating high manganese weld metal compositions having enhanced erosion, corrosion and/or cracking resistance.

Provided are low friction coatings with improved abrasion, wear resistance and methods of making such coatings. In one form, the coating includes: i) an under layer selected from the group consisting of CrN, TiN, TiAlN, TiAlVN, TiAlVCN, TiSiN, TiSiCN, TiAlSiN and combinations thereof, wherein the under layer ranges in thickness from 0.1 to 100 &#x3bc;m, ii) an adhesion promoting layer selected from the group consisting of Cr, Ti, Si, W, CrC, TiC, SiC, WC, and combinations thereof, wherein the adhesion promoting layer ranges in thickness from 0.1 to 50 &#x3bc;m and is contiguous with a surface of the under layer, and iii) a functional layer selected from the group consisting of a fullerene based composite, a diamond based material, diamond-like-carbon and combinations thereof, wherein the functional layer ranges from 0.1 to 50 &#x3bc;m and is contiguous with a surface of the adhesion promoting layer.

Low friction coatings with improved abrasion and wear properties and methods of making

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Easton, PA, United States of America

Hyunwoo Jin