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Keywords: zirconium
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Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11284
... referred to as the gold standard for nitric acid heat exchangers, zirconium offers excellent corrosion resistance to nitric acid in all concentrations up to 90% and higher temperatures. The most important problem is, that retrofitting a shell-and-tube heat exchanger or other process equipment with 100...
Proceedings Papers

Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11177
... all other traditional corrosion resistant specialty materials like nickel, titanium, zirconium and tantalum alloys have failed. This paper will compare the corrosion resistance of tantalum surface alloys to other specialty metals as well as discuss the unique mechanical properties and economics...
Proceedings Papers

Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11168
...2011 A Novel Model for the Crevice Corrosion of Zirconium in Water-Deficient Organics Te-Lin Yau Te-Lin Yau Consultancy 12103 SE High Creek Road Happy Valley, OR 97086 USA ABSTRACT Zirconium exhibits excellent resistance to most organic environments. To maintain this resistance, it is necessary...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10239
... INTRODUCTION ABSTRACT Iodine-induced stress corrosion cracking (SCC) of zirconium cladding tubes is a well known problem inherent in fuel cladding operation in nuclear reactor core. In the present work we have applied a previously developed approach of SCC-testing of zirconium cladding tubes...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10346
... corrosion resistance zr 705 sulfuric acid application alloy zr 702 chloride hydrogen zirconium mechanical property zirconium alloy 2010 Comparison of Zirconium 705 and Zirconium 702 in Sulfuric Acid Derrill R. Holmes Senior Corrosion Engineer ATI Wah Chang, an ATI Company 1600 Old Salem Road...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09167
... ABSTRACT: Zirconium is well known and widely used in sulfuric acid containing processes where it is used in heat exchangers, tanks, piping and other ancillary equipment. A considerable body of corrosion data has been developed describing the use of zirconium for use in sulfuric acid...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09366
... resistance zirconium oxide layer heat treatment factor level metals & mining riser corrosion IGA corrosion rate configuration coupon surface condition hydrochloric acid vapor 2 2 0 twenty-eight day vapor 2 2 2 0 edge corrosion stress relief 2009 Copyright ©2009 by NACE International...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08183
... to hydrogen embrittlement. Like tantalum, zirconium resists attack by hot, strong acids. Zirconium resists better than tantalum to hydrogen embrittlement when oxidizing impurities are absent. In fact, zirconium prefers reducing conditions. It is the oxidizing condition that may induce corrosion problems...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08184
..., such as temperature, pressure and impurities, are involved. The usefulness of many alloys in sulfuric acid is restricted to some specific conditions, such as low concentration, high concentrations, or low temperatures. The corrosion of zirconium in sulfuric acid solutions is rather straightforward. It resists attack...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08185
... are solely those of the author(s) and are not necessarily endorsed by the Association. Printed in the U.S.A. Effects of Heat Treatment and Surface Condition on the Corrosion Resistance of Zirconium in Hydrochloric Acid Patrick A. Snow Steven D. Sparkowich Michael L. Bozzello ATI Wah Chang An Allegheny...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07184
... presents data for both titanium and zirconium alloys for possible use in biodiesel production. KEY INTRODUCTON Dr. Rudolf Diesel, a French native of German parents, received a patent for the compression ignition engine in 1893. Peanut oil was used as fuel for his engine during his exhibit at the World...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07185
... ABSTRACT ABSTRACT Zirconium is very well known for its excellent corrosion resistance. Especially in reducing environments like HCl the performance is superior to many alloys and second only to Tantalum. However, the impurity content, cold working, surface condition and welding procedure...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07601
... ABSTRACT ABSTRACT The corrosion behaviour of different zirconium based alloys has been studied at various steam pressures. The objectives of this work were to understand and explain the effect of alloying elements and steam pressure on the corrosion resistance. The precipitate free alloys...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06210
... ABSTRACT Zirconium can be fusion welded to a number of other reactive and refractory metals including niobium, hafnium, vanadium, tantalum and titanium. Fusion welding of zirconium to titanium can result in a weld exhibiting varying final properties which are unpredictable and generally non...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06206
... were prepared from type 310 stainless steel made by two producers. They were tested in 65% HNO3 using zirconium-lined autoclaves. Test results are given in Table 1. It can be seen that the alloy from Producer A performs consistently better than that from Producer B. It is important not just to meet...
Proceedings Papers

Paper presented at the CORROSION 2004, March 28–April 1, 2004
Paper Number: NACE-04227
... the usefulness of electrochemical measurements in evaluating corrosion resistant alloys. Also, preventing measures have been developed from electrochemical data. Keywords" Corrosion, immersion tests, electrochemical tests, stainless teels, titanium, and zirconium. INTRODUCTION Corrosion resistance is a critical...
Proceedings Papers

Paper presented at the CORROSION 2004, March 28–April 1, 2004
Paper Number: NACE-04222
...EFFECT OF HEAT TREATMENT AND TIN CONTENT ON THE CORROSION OF ZIRCONIUM 702 IN SULFURIC ACID. Derrill R. Holmes ATI Wah Chang an Allegheny Technologies Company 1600 Old Salem Road Albany, Oregon 97321 ABSTRACT The effect of heat treatment and tin content on corrosion of Zirconium 702 (R60702...
Proceedings Papers

Paper presented at the CORROSION 2003, March 16–20, 2003
Paper Number: NACE-03462
... ABSTRACT Zirconium 702 (UNS R60702) has found a valuable niche in processing producing acrylic monomers due to its corrosion resistance in process streams containing sulfuric acid at elevated temperatures. The continual push to use higher temperatures, velocities and pressures for process...
Proceedings Papers

Paper presented at the CORROSION 2003, March 16–20, 2003
Paper Number: NACE-03451
... ABSTRACT Laboratory testing was used to demonstrate the differences in corrosion rate of typical zirconium 702 (R60702) containing approximately 2400 ppm tin, and low-tin zirconium 702 containing approximately 1400 ppm tin. Sample material was heat-treated at 770ºC for 1 hour. Standard...
Proceedings Papers

Paper presented at the CORROSION 2003, March 16–20, 2003
Paper Number: NACE-03459
... which are double traditional size, 2) simultaneous bonding of a beneficial interlayer with higher strength zirconium or titanium grades, and 3) qualification of the bonding process for producing Ti-0.1Ru Grade 27 clad plate product. These developments and their commercial implications are discussed...

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