Hi team - Rhenium adds high temperature stability to the nickel based super
alloys but it also has been shown to cause some microstructure instability
so the "modern" super alloys  are now using ruthenium to accomplish the
high temperature stability without the potential microstructure issues.

Dave

On Mon, Dec 3, 2018 at 8:46 AM Stadem, Richard D <[log in to unmask]>
wrote:

> Dave, what properties does the Rhenium provide to the nickel, and how is
> the NiRe used on the engines?
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of David Hillman
> Sent: Friday, November 30, 2018 12:42 PM
> To: [log in to unmask]
> Subject: [TN] Element Quiz Answer
>
> The Question:
> This element is one of the rarest with an estimated average concentration
> of 1 part per billion in the Earth's crust. The element derives its name
> from a river found in Europe. The F-15, F-16, F-22 and F-35 all use this
> element as part of their engine construction alloy. Two isotopes of this
> element are used for the treatment of liver cancer. Name the element being
> described?
>
> The Answer:
> The element is Rhenium (Re)! Rhenium is named after the river Rhine
> <
> https://urldefense.proofpoint.com/v2/url?u=https-3A__en.wikipedia.org_wiki_Rhine&d=DwIGaQ&c=ilBQI1lupc9Y65XwNblLtw&r=qMshjwqeixvQjs1qYTl8aRebuaqi25nLzYlpmDF6tjI&m=BHdI-A-gHoRCjkDso8VpqsvVHymr0x0hpXgcyvW-kbo&s=60JRghMrK0Wv1iE2XYEfzreBrKCi0MF3M5oRUQmqE9o&e=>
> in Europe. Nickel based superalloys
> normally contain 3% or 6% of rhenium. Second-generation alloys contain 3%;
> these alloys were used in the engines for the F-15 and F-16, whereas the
> newer single-crystal third-generation alloys contain 6% of rhenium; they
> are used in the F-22 and F-35 engines. The isotopes 188Re and 186Re are
> radioactive and are used for treatment of liver cancer.
>
>
> The winner of the quiz is Torsten Hagge, Kristronics and will get the
> services
> of Clumpy & Kloumpios for the week.
>
> So far Clumpy and Kloumpios have done the following:
>
> Past Quiz winners/tasks:
> Week 1 Ravinder Ajmani, Western Digital
> Week 1 Ron Feyereisen, SigmaTron Intl.
> Week 2 Louis Hart, Compunetics
> Week 3 Mark Kostinovsky, Schlumberger Ltd.
> Week 3 John Burke
> Week 4 Drew Meyer, Benchmark Electronics
> Week 5 No Winner - no correct responses!
> Week 6 Bhanu Sood, NASA
> Week 7 Keith Calhoun, Sopark Corp
> Week 7 Ian Fox, Rolls Royce
> Week 8 Leland Woodall
> Week 8 David Bealer, SMT
> Week 9 Tom Carroll, Boeing
> Week 10 Louis Hart, Compunetics
> Week 11 Tom Carroll, Boeing
> Week 11 Scott Decker, UTAS
> Week 12 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
> Week 13 No Quiz,
> Week 14 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
> Week 15 Bhanu Sood, NASA
> Week 16 John Maxwell
> Week 17 Leland Woodall
> Week 18 Leland Woodall
> Week 19 Tom Carroll, Boeing
> Week 20 Robert Kondner
> Week 21 Tom Brendlinger, ClearMotion Inc.
> Week 22 Carl Van Wormer, Cipher Engineering LCC
> Week 23 Juliano Ribeiro, DATACOM
> Week 24 Gerry Gagnon, FLIR Commercial Systems
> Week 25 Graham Collins, Sunsel Systems
> Week 26 Joyce Koo, IPC International
> Week 26 Todd MacFadden, Bose
> Week 27 Bhanu Sood, NASA
> Week 28 Leland Woodall
> Week 29 Mordechai Kirshenbaum
> Week 30 Leland Woodall
> Week 31 Leland Woodall
> Week 32 Steve Gregory
> Week 33 Leland Woodall
> Week 34 Jerry Dengler, Pergamon Corp
> Week 35 Frank Kimmey, VeriFone Inc
> Week 36 Graham Collins, Sunsel Systems
> Week 37 Richard "Dean" Stadem
> Week 38 Leland Woodall
> Week 38 Tom Carroll
> Week 39 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
> Week 40 Leland Woodall
> Week 41 Tom Carroll
> Week 42 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
> Week 43 Joyce Koo
> Week 44 Russell Kido, Practical Components
> Week 45 Leland Woodall
> Week 45 Frank Kimmey, VeriFone Inc
> Week 46 Ian Fox, Rolls-Royce Control Systems
> Week 47 Fred Cox, Bluering Stencils
> Week 48 Tom Carroll, Boeing
> Week 49 Todd MacFadden, Bose
> Week 49 Leland Woodall
> Week 50 Russell Kido, Practical Components
> Week 51 Ravinder Ajmani, Western Digital
> Week 52 Leland Woodall
> Week 53 Scott Decker, UTAS
> Week 54 Leland Woodall
> Week 55 Tom Carroll, Boeing
> Week 56 Mordechai Kirshenbaum
> Week 57 Steve Herring, Pennatronics Corp
> Week 58 Leland Woodall
> Week 59 Drew Meyer, Benchmark
> Week 60 Leland Woodall
> Week 61 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
> Week 62 Leland Woodall!
> Week 63 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
> Week 63 Tom Carroll, Boeing
> Week 63 Tom Granat
> Week 64 George Wenger
> Week 65  Frank Kimmey, VeriFone Inc.
> Week 66  Jerry Dengler, Pergamon Corp
> Week 66  Leland Woodall
> Week 67  Eray Canli,  ANDAR Electromechanical Systems
> Week 68  James Head
> Week 69  Mordechai Kirshenbaum
> Week 70 Doug Pauls, Rockwell Collins
> Week 71  Eray Canli,  ANDAR Electromechanical Systems
> Week 72  Russell Kido, Practical Components
> Week 73 Denny Friz
> Week 74 Drew Meyer, Benchmark Electronics
> Week 74 Leland Woodall
> Week 75 Mordechai Kirshenbaum
> Week 76 Tom Carroll, Boeing
>
> Week 76 Eray Canli,  ANDAR Electromechanical Systems
> - Since they are so 'familier' with IPC community than anyone else, should
> come to office and discipline my colleagues on importance of the ESD issues
> for a whole week.
>
> Week 77 Drew Meyer, Benchmark Electronics
> - The boys are right on time.  Decapsulation of two custom ASICs potted in
> epoxy, lots of prep work and then on to the 576 Tek curve tracer to
> characterize all characteristics of 8 diodes looking for a potential
> walking wounded.
>
> Week 78 David Bealer, WatchFire Signs
> - The boys can help with finish up a much needed machine qualification, and
> then can go home for the long Thanksgiving weekend.
>
> Week 79 Torsten Hagge, Kristronics
> - assisted with ????
>
> I hope everyone has a awesome week!
> Dave Hillman
> Collins Aerospace
> [log in to unmask]
>