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Questions tagged [alloys]

28 questions
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ANSYS APDL Shape memory effect option of SMA not working

I am trying to define the material properties of a shape memory alloy material in ANSYS APDL V15. There are material properties for Superelastic materials (SUPE option) and material properties for Shape memory effect materials (MEFF option)…
imacube
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How can the alloying materials of recycled steels be separated?

As I know, a very considerable part of the currently processed steels (around half of it) is coming from recycling. But during the steels coming into the recycling process are coming normally from various sources, and thus they are containing very…
peterh
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Do "non-iron steels" exist?

There are numerous steel alloys, containing mostly iron, carbon, and some other metals. Generally speaking, we can think of them as if they were some type of steel. My question is: do "non-ferrous steels" exist? I am thinking of pure, non-iron…
peterh
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Steel : is Damascus steel still relevant compared to modern alloys?

Damascus steel is a multilayered hand-forged steel used in the past for arabic and japanese weapons and now for kitchen knives and various connoisseur blades. Usually, two alloys are used alternatively to stack layers having different properties and…
Aurélien Pierre
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Aluminum for an Ejection Seat Replica

I love ejection seats and the flying contraptions they usually reside in. In fact, I like them so much that I want to make my own, despite my profound lack of training and inexperience with mechanical engineering in general. After doing a little…
Green
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Purpose of a GD-Zn alloy

Here are screenshots of the data-sheets of two separate products for a reference. They both are nickel plated, used for coupling nuts. The former is shielded, the latter is not, I wonder if this is the main reason to chose one over the other. GD-Zn…
peter.babic
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Furnace for aluminum alloy creation

What kind of furnace is used to create alloys for aluminum die casting? I have only been able to find information about how to create alloys or how to process them afterwards in the die casting process. Any insight on which kind of furnace you use…
Sket
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Alloys with same density as gold

Lavoisier's principle of mass conservation states that the mass of a system must remain constant over time. But, as far as I know, there's no similar principle for density. So, is it possible to develop an alloy as dense as gold but made of…
Mark Messa
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What's the difference between tempering and aging?

The processes sound really similar; I'm asking with respect to Martensite processing. Essentially the difference between Tempered martensite and Aged martensite for Steels
N. Babuchak
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38CrNiMoAlA: Does it even exist?

I have some plungers made of 38CrNiMoAlA. Their required hardness to be achieved via quenching/tempering is 51 HRC. I've scoured our technical order for heat treatment of steel alloys but the material is not there. I even checked the internet, it…
Muhammad Naufil
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Alternatives to zinc die cast (Zamak)

I am working for a small domestic home appliance manufacturer and we are looking at ways to reduce our appliance's carbon footprint. Currently we use a lot of die-casted zinc-aluminum alloy (Zamak, usually), and we are wondering if there are more…
Harbinger_0569
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What aluminum grade is the most resistant to corrosion in alkaline environment?

Quick google search will return either 6000 series (6061 more specifically), or 3003 However with so many option and each having it's own benefit, I still haven't make my decision What I am looking for is the one with the most resistance to…
poalsd
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Is thermal conductivity a property that affects the use of an alloy in high-temperature applications?

I'm interested in the effect of thermal conductivity on the choice of materials used for high temperature applications such as turbines. For the particular case of Nickel-Chromium alloys (such as René 41 or Udimet 700), I have found that electrical…
A. Rapoport
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What is the metallic alloy used in camera cases?

What is the metallic alloy used in camera cases? They are manufatured by what process?
S. Feunmajer
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Grain size and fatigue performance correlation for AMS 5662 Inconel 718

I am trying to do a literature review on the correlation between average grain size and fatigue performance of AMS 5662 (solution annealed condition) Inconel 718. The Special Materials Corporation datasheet (SMC-045, 2007, page 16, PDF), shows a…
Foad
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