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hydride cracking

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Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003823
EISBN: 978-1-62708-183-2
..., and pH on zirconium. The delayed hydride cracking of zirconium is also described. The article provides information on the resistance of zirconium to various types of corrosion, including pitting corrosion, crevice corrosion, intergranular corrosion, galvanic corrosion, microbiologically induced corrosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
... Steels subject to combined high-temperature and high-pressure hydrogen. Also affects copper Irreversible chemical reactions of hydrogen with matrix or alloy elements form high-pressure pockets of gases other than molecular hydrogen. Cracking from hydride formation Transition, rare earth, alkaline...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003828
EISBN: 978-1-62708-183-2
... on oxidation in dry air or oxygen, water vapor, and oxygen-water vapor mixtures depending upon particular storage conditions. The mechanism and morphology of hydride corrosion of uranium are discussed. The article provides information on environmentally assisted cracking, protective coatings, and surface...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003782
EISBN: 978-1-62708-177-1
.... This micrograph shows the presence of delayed hydride cracking in a Zr705 weld. This condition occurs in a non-stress-relieved welded structure. Original magnification: 100× Fig. 38 Zirconium sheet. (a) Attack polished, heat tinted, and viewed with polarized light illumination. (b) Attack polished...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001441
EISBN: 978-1-62708-173-3
... for commercial grades R60702 and R60704 can be used when high residual stresses occur. Grade R60705 must be stress relieved within 14 days after welding to prevent delayed hydride cracking (DHC). Commercial-grade zirconium alloys can be heat treated in air or in an inert atmosphere. Nuclear-grade zirconium...
Book Chapter

By Bruce Craig
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003634
EISBN: 978-1-62708-182-5
... hydride formation Hydrogen environment embrittlement Hydrogen stress cracking Loss in tensile ductility Typical materials Steels, nickel-base alloys, metastable stainless steel, titanium alloys Carbon and low-alloy steels Steels, nickel-base alloys, Be-Cu bronze, aluminum alloys Carbon...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... attack Steels subject to combined high-temperature and high-pressure hydrogen. Also affects copper Irreversible chemical reactions of hydrogen with matrix or alloy elements form high-pressure pockets of gases other than molecular hydrogen. Cracking from hydride formation Transition, rare earth...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002361
EISBN: 978-1-62708-193-1
... embrittlement appears to be divided into five types of mechanisms: Decohesion Pressure Adsorption Deformation Brittle hydride The balance between various phenomena is very difficult to sort out. Many researchers think that dissolution and hydrogen-induced cracking processes...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003779
EISBN: 978-1-62708-177-1
... g/L (2.4 oz/gal) of NH 4 HF 2 (ammonium bifluoride) in H 2 O Reveals α and β segregation (aluminum segregation) Microetchants 1–3 mL HF, 10 mL HNO 3 , 30 mL lactic acid Reveals hydrides in unalloyed titanium 1 mL HF, 30 mL HNO 3 , 30 mL lactic acid Reveals hydrides in unalloyed...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004148
EISBN: 978-1-62708-184-9
..., if their orientations favor a cracking path through them, reduces the ductility of the alloy in case of low-temperature stress or impacts. This could occur during fuel handling in pool and transport. At operating temperatures, the hydrides are ductile and do not affect the mechanical properties of the zirconium alloy...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.9781627081733
EISBN: 978-1-62708-173-3
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003632
EISBN: 978-1-62708-182-5
...Abstract Abstract This article discusses the fundamental aspects of environmentally induced cracking. It provides a theoretical basis for the evaluation, testing, and methods of protection against the cracking. The article describes the mechanisms of corrosion that produce cracking of metals...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006121
EISBN: 978-1-62708-175-7
...  Lead 10 10  Silicon 20 40  Tin 25 100  Titanium 10 n/a  Tungsten 250 150 Mo, Molybdenum; LOR, loss on reduction Typical compositions of sodium-reduced and electron beam melted hydrided-dehydrided tantalum powders Table 3 Typical compositions of sodium-reduced...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001307
EISBN: 978-1-62708-170-2
...Procedure for sodium hydride descaling and acid pickling of heat-resistant alloys Table 3 Procedure for sodium hydride descaling and acid pickling of heat-resistant alloys Operation Time Temperature Solution (a) Concentration, vol % (a) °C °F Sodium hydride descale 1–2 h...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003142
EISBN: 978-1-62708-199-3
...Abstract Abstract This article discusses corrosion resistance of titanium and titanium alloys to different types of corrosion, including galvanic corrosion, crevice corrosion, stress-corrosion cracking (SCC), erosion-corrosion, cavitation, hot salt corrosion, accelerated crack propagation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... it is appropriate to speculate on which is thought to be more likely, as long as the assumptions underlying the speculations are documented: Crack tips often provide more information than wide-open cracks. Look for residual-stress indicators when sectioning ( Fig. 3 ). Document rub marks and nonuniform...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003822
EISBN: 978-1-62708-183-2
... explanations and insights on the most common forms of corrosion observed with titanium alloys, including general corrosion, crevice corrosion, anodic pitting, hydrogen damage, stress-corrosion cracking, galvanic corrosion, corrosion fatigue, and erosion-corrosion. It also provides practical strategies...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001747
EISBN: 978-1-62708-178-8
... Cracking Thermal-conductive detection uses the ability of each specific gas to draw heat away from a body. Figure 6 shows a typical thermal-conductive detection cell, and Table 1 lists thermal conductivity rates for a number of gases. The thermal-conductive rates of the inert carriers helium...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003149
EISBN: 978-1-62708-199-3
... , 1955 • Manual on Zirconium and Hafnium , STP 639, ASTM , 1977 • Yau T.-L. , Stress-Corrosion Cracking of Zirconium Alloys , Stress-Corrosion Cracking: Materials Performance and Evaluation , Jones R.H. , Ed., ASM International , 1992 , p 299 – 311 Alpha-Stabilizing...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005338
EISBN: 978-1-62708-187-0
... to 1150 °F) for 30 min per 25.4 mm (1 in.) of thickness to prevent delayed hydride cracking of the weld ( Ref 14 ). For some specific applications, such as high sulfuric acid concentrations, welds may require a 770 °C (1420 °F) for 1 h per 25.4 mm (1 in.) of thickness heat treatment for optimum corrosion...