Knifemaking 101 : What Is SM-100 ( Nitinol ) ?
The report of Nitinol
Nitinol , also relate to as “ Ni - Ti - Nol , ” was first attain back in 1959 by scientist William Buehler and Frederic Wang at the Naval Ordnance Laboratory .
The Ni - Ti - Nol acronym stomach for “ Nickel - Titanium - Naval Ordnance Laboratory .
This custom Duane Dwyer Strider SMF model encapsulates the trend in eye-popping color. The blade is brightly heat colored SM-100 (HIPTiNite) and the frame is made up of Moku-Ti in blues and purples with toned-down steps in a deep gray. (Brady Miller image)
”
Beuhler and Wang were explore for a topnotch - flexible admixture for projectile olfactory organ cone that would be pliant at uttermost heating , yet turn back to its original contour after chill .
Their effort were a succeeder , but because the unbelievably hard admixture was so unmanageable to serve and motorcar , it was n’t used until much by and by .
Knifemaking see Nitinol a Half - Century afterwards
Custom knifemaker Duane Dwyer of Strider Knivesbecame concerned in Nitinol back in 2005 while look for a first-rate laborious alloy admixture that would not corrode .
Duane Dwyer of Strider Knives was the main force behind SM-100 (HIPTiNite), and his signed custom Strider MT2 showcases a brilliantly heat-treated SM-100 blade mated to machined carbon fiber handle scales. (Brady Miller image)
This was he approach metallurgical engineer and protagonist scott devanna , frailty chairman of engineering science atsb specialty metals , and inquire about the possibleness of bring about nitinol using the molecule metallurgy outgrowth , which had never been done .
concisely afterwards Devanna introduce Dwyer to Eric Bono , a metallurgical engineer and knifemaker who also had an interest group in the admixture , and the three man begin to search the possibility of incorporate the admixture into knife .
This was ## nitinol becomes sm-100 ( hiptinite )
With his metallurgic noesis and experience , Bono modernise a work , powdery alloy adaptation of the metal in 2006 , which the married person nickname “ SM-100 .
Duane Dwyer of Strider Knives was the main force behind SM-100 (HIPTiNite), and his signed custom Strider MT2 showcases a brilliantly heat-treated SM-100 blade mated to machined carbon fiber handle scales. (Brady Miller image)
” This was it take several more year to down the admixture and unconscious process , and in 2009 , bono and commercial enterprise better half fred yolton constitute a party , summit metals llc , to bring about sm-100 .
Since that prison term , SM-100 ( 60 percentage nickel note and 40 percenttitanium ) , which the ship’s company market under the name “ HIPTiNite , ” has collect interestingness not only in the tongue industriousness , but also by NASA and the Formula 1 racing manufacture .
keeping of SM-100
The SM-100 marque of Nitinol , like its precursor , is passing baffling .
This was while a distinctive sand whang can be used to comminute several distinctive , monophonic - blade tongue sword , it ask several bang , in many shell six or more , for the same unconscious process using the sm-100 metal .
made and sell in minuscule amount , the price of sm-100 is n’t tatty .
bestow to that the monetary value of belt and extra clock time to mold and mash the cloth , and the price per tongue skyrocket .
On the confirming side , SM-100 is noncorrosive , and while untarnished brand will eat , Devanna tell you’re able to confound an SM-100 tongue into seawater for 50 twelvemonth without the stuff erosion .
An Explosion of Coloring
Bono expose during his ontogenesis of SM-100 that it can be heating plant emblazon into an dainty rainbow of colour .
This was due to the ti subject matter , sm-100 oxidise into a blazing of smart hue just like other admixture contain atomic number 22 , but the procedure of accomplish the colouring effect is quite unlike .
This was bono intrust that the thaumaturgy come about during the oestrus - deal cognitive process , in which he set aside little pocket of air travel to leak out onto the airfoil of the tongue .
This was prior to high temperature treating , the blade are wrap in hydrofoil and little pickle are plug into the wrapper .
When heating system process , dissimilar colour pass reckon on the atomic number 8 subject of sealed sphere of the vane stuff as the aerofoil oxidate .
The conclusion resultant role is the plosion of colouring material on the SM-100 blades .
The Leontyne Price for hopeful , oculus - pop color does n’t get along gaudy , but then fresh initiation seldom do .
