1-14 of 14 Search Results for

ion implantation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001610
EISBN: 978-1-62708-222-8
... and the pitting process is further accelerated. 12 Corrosion of metal implants is critical because it can introduce additional ions to the body and adversely affect biocompatibility. 12 The lack of resistance to pitting corrosion associated with the poor surface finishing of the stainless steel jewelry...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
..., splines, couplings, clutches, spindles, and seals; in press fits on shafts; and in universal joints, base plates, shackles, and orthopedic implants. Generally, fretting occurs at contacting surfaces that are intended to be fixed in relation to each other but that actually undergo minute alternating...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
...; hydrogen gas is evolved and the zinc dissolves, forming an acidic aqueous solution of zinc chloride. The reaction is: (Eq 1) Zn + 2 HCl → ZnCl 2 + H 2 Since the chloride ion is not involved in the reaction, this equation can be written in the simplified form: (Eq 2) Zn...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... reaction occurs in which hydrogen gas is evolved and the zinc dissolves, forming an acidic aqueous solution of zinc chloride (ZnCl 2 ): (Eq 1) Zn + 2 HCl → Zn Cl 2 + H 2 Because the chloride ion is not involved in the reaction, this equation can be written in a simplified form...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001579
EISBN: 978-1-62708-226-6
... in hematoma. 4 Of all the ionic components of blood plasma and interstitial fluids, the chlorine ions are typically the most aggressive to metal implants. Several types of chloride-induced corrosion attacks have been reported to affect stainless steel implants; pitting, intergranular corrosion, and crevice...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
... and the biological environment. Figure 3 indicates the ionic composition of blood plasma and interstitial and intracellular fluids. Of the components shown, the chlorine ions are the most critical for metal implants. The normal pH of the body liquids is about neutral—in the range of 7.2 to 7.4 pH ( Ref 10...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
... make the dissolution of metal ions difficult and so may delay corrosion and wear and also minimize the loosening of implants from bone. References References 1. Smith G.K and Black J. : “ Models for Systemic Effects of Metallic Implants ,” Proc. Int. Symp. on Retrieval...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... films or large loads. Although analytical methods have been developed to compensate for this, these do not help when the measurements are made on multilayers or ion-implanted surfaces in which there is a gradient of mechanical properties. X-ray powder diffraction is an important tool...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... for this, these do not help when the measurements are made on multilayers or ion-implanted surfaces in which there is a gradient of mechanical properties. Alternate methods to determine hardness gradients are the constant load method, which involves removing successive thin layers of material and performing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
.... , Vol 44 ( No. 5 ), 2011 , p 532 – 549 10.1016/j.triboint.2010.06.010 36. Geringer J. , Forest B. , and Combrade P. , Fretting-Corrosion of Materials Used as Orthopaedic Implants , Wear , Vol 259 , 2005 , p 943 – 951 10.1016/j.wear.2004.11.027 37. Bacroix B...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... for implants. However, metals behave differently in different environments. The relative positions of metals and alloys in the galvanic series can vary significantly from one environment to another. The position of alloys in the galvanic series for seawater is not necessarily valid in nonsaline solutions...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... are similar to saltwater, so as a first approximation the galvanic series is useful for implants. However, metals behave differently in different environments. The relative positions of metals and alloys in the galvanic series can vary significantly from one environment to another. The position of alloys...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001629
EISBN: 978-1-62708-235-8
... from the surface and also has the effect of implanting the primary ions into the surface. The nature of this technique makes it feasible for analyzing trace amounts of substances; however, extensive knowledge of the sputtering rate is needed in conjunction with calibration of the obtained signals...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
... the gun chamber from the sample chamber allow a high vacuum to be maintained in the gun area while samples are being inserted or removed. Separate pumps (such as titanium ion-getter pumps) attached to the gun continue to operate while the sample chamber is vented to atmosphere. These features are standard...