Search Results for alloy

...Electrochemical characterization was performed on near-equiatomic nickel-titanium shape memory alloy (SMA), Al₂Cr₅Cu₅Fe₅₃Ni₃₅ high entropy alloy (HEA), and UNS S31603 stainless steel to assess and compare the corrosion behavior and resistance...

...Abstract A failure in a Precipitation Hardened (PH) Nickel alloy component used as part of a Tubing Retrievable Safety Valve (TRSV) assembly occurred in an offshore gas well. The partial pressures of H₂S and CO₂ at the TRSV were estimated to be 333 and 534 psia, respectively...

...Magnesium (Mg) alloys are gaining interest for biodegradable medical implant devices due to a good combination of mechanical properties and biocompatibility. Nevertheless, the fast degradation rates of Mg and its biocompatible alloys in the aggressive physiological environment impose limitations...

...Although some of the older duplex stainless steels are still available, this discussion will be confined to alloys that are commonly used in industrial plants. COMPOSITIONS. The duplex stainless steels can be split up into four main groups: lean duplex, standard duplex, superduplex...

...Cobalt is usually alloyed with chromium and is commonly used for its wear-resisting properties. Although cobalt and nickel are very similar, it is sometimes reported that cobalt alloys are not as corrosion resistant as similar nickel alloys. This is usually because the cobalt alloys contain...

...FIGURE 4.1. Depth of crevice attack on 22% chromium duplex stainless steel coupled to various alloys in natural seawater. ³ Figure 4.2 shows similar results for type 316L stainless steel. In this case, coupling to all the Group 1 alloys except the 6% molybdenum super austenitic...

...In this chapter, the composition and important properties of the common copper alloys are discussed. This chapter does not pretend to be an in-depth discussion of the metallurgy and physical properties of copper alloys; rather, it is intended to acquaint engineers with the important alloys...

...Modern structural biomedical implants utilize titanium alloys due to their excellent corrosion resistance, mechanical properties and biocompatibility. An important mode of failure with the implant alloys, e.g., UNS R56400 (Ti-6Al-4V; Ti64), is aseptic loosening. This is a phenomenon initiated...

...Nominal Compositions of the Alloys Discussed in the Text. TABLE A.1. The nominal compositions of some commonly used wrought duplex stainless steels. TYPE UNS No. GENERIC NAME NOMINAL COMPOSITION (wt%) PREN ^* Fe Cr Ni Mo N Cu W Mn Lean Duplex S32304...

...Structural biomedical implant alloys are predominantly titanium-based with UNS R56400 (Ti-6Al-4V; Ti64) being the most commonly used. These alloys demonstrate excellent corrosion resistance and biocompatibility; however, there is an ongoing need to have longer lasting implants given the rapid...

...Nominal Composition of Some Alloys Commonly Used in Desalination Plants Table A.1 Austentic Cast Irons—all of the alloys below contain a small magnesium addition (typically ~0.06%) to spheroidize the graphite. ASTM A439 Designation UNS NUMBER NOMINAL COMPOSITION (wt%) Fe C...

...? What is the substrate alloy? What is the high yield strength “hardness” of the alloy? Are the locations’ structural design accessible to centrifugal blast equipment? These questions are important, and knowing the answers can be the difference between damaging Navy property and/or doubling...

...Nominal Compositions of Some Commonly Used Copper Alloys The following tables give the nominal compositions of some copper alloys commonly used in engineering. They are grouped by type, as described in Chapter 2 . TABLE A.1 Brasses Form Common name UNS no. Nominal composition (wt...