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19 NACE INTERNATIONAL: VOL. 56, NO. 10 MATERIALS PERFORMANCE OCTOBER 2017 Information on corrosion control and prevention To determine its resistance to acid, the CV D WC coating was tested for 113 h in 20% nitric acid (HNO 3 ) alongside a WC/ Co detonation coating. The CV D WC- coated sample turned a yellowish color due to slight surface oxidation. Its dimen- sions did not change and the weight loss was not measurable (<0.001 g). Its surface roughness remained at 0.10 µm rough- ness average (R a ), which indicated it had not been attacked. In the same test, the WC/Co detona- tion-coated sample changed to a dark grey color, while the acid solution became a rose color due to cobalt leaching. The weight loss of the sample after 46 h and 40 min was ~0.3 g. The WC/Co detonation coating roughness changed from 0.10 to 0.41 µm R a after testing in 20% HNO 3 because of metal binder leaching. In the oil and gas industry, use of the nanostructured CV D WC coating process opens the door to advanced designs for tools and components used in extreme environments with high wear and/or aggressive media, including applications for downhole and directional drilling, metal seated ball valves, and pumps that handle abrasive f luids. Ty pically, the coating increases service life of critical parts by a factor of three. More information on the CV D WC coatings can be found in CORROSION 2010 paper no. 10260, "Nano-structured CV D Tungsten Carbide Coating Protects Against Wear and Corrosion," by Y.N. Zhuk. Contact Yuri Zhuk, technical director, Hardide Coatings—email: yzhuk@hardide. com. References 1 ASTM B117-16, "Standard Practice for Oper- ating Salt Spray (Fog) Apparatus" (West Con- shohocken, PA: ASTM, 2016). 2 NACE TM0177-2016, "Laboratory Testing of Metals for Resistance to Sulfide Stress Crack- ing and Stress Corrosion Cracking in H 2 S En- vironments" (Houston, TX: NACE Interna- tional, 2016). 3 ASTM G39-99 (2016), "Standard Practice for Preparation and Use of Bent-Beam Stress- C orro sion Te st Sp e cim ens" ( We st C on- shohocken, PA: ASTM, 2016). —K.R. Larsen NACE NEW ORLEANS SECTION 19TH ANNUAL EDUCATION WEEK DECEMBER 4-9, 2017 • NEW ORLEANS AIRPORT HILTON nace.org/nolaedu to register for NACE Section Local Courses NACE NEW ORLEANS SECTION COURSES DATES PRICE INSTRUCTOR Corrosion in Oil and Gas Production (COG) December 4-6 $400 Charlie Speed, Consultant Corrosion Under Insulation (CUI) December 4-6 $500 Peter Bock, CUI Consultant Rectifier School (RS) December 4-5 $250 Jim Bradford, Corrpro Oilfield Operator Chemical School (OOCS) December 7-8 $300 Charlie Speed & 15 Other Experts GENERAL NACE EDUCATION COURSES DATES PRICE NACE CERTIFIED INSTRUCTORS Basic Corrosion (BC) December 4-8 For pricing and to register for these NACE General Education courses, go to nace.org/ nolacourses Raul Castillo P.E. Designing For Corrosion Control (DCC) December 4-8 Jerry Byrd Corrosion in Refining Industry (CCRI) December 4-8 Ray Quinter Protective Coatings Specialist (PCS-1 BASIC) December 4-6 Kat Coronado Protective Coatings Specialist (PCS-2 ADVANCED) December 7-9 Kat Coronado Students are responsible for hotel reservations. Contact the New Orleans Airport Hilton at +1 504-469-5000 or 1 800-445-8667 and ask for the NACE Event Rate Code: NAC. Room rate is $133/night. For pricing and to register for NACE General Education courses, go to nace.org/nolacourses For information about New Orleans Section Events, go to nace.org/nola For questions, call Charlie Speed at +1 504-400-7878 I N T E R N A T I O N A L