Diffusion Hardening - Types


Diffusion hardening can be done in many different ways to achieve different hardnesses and different surface finishes on metal parts. Some of the different diffusion hardening operations include: Carburizing, Nitriding, Carbonitriding, Nitrocarburizing, Boriding, Titanium-carbon diffusion, and Toyota diffusion. While diffusion hardening is performed mainly on steel parts and carbon is mainly the element used for diffusion, diffusion hardening can also be performed with other diffusion elements and with other metals. In nitriding, nitrogen is diffused into the surface of steel, but can also be used with metals such as Aluminum, Chromium, Molybdenum, and Vanadium. Besides metals and diffusion elements used, diffusion hardening processes differ in the temperature required for diffusion, the phase of the diffusion element, and additional treatments such as quenching and tempering. These different factors greatly affect surface finish and dimensional accuracy of a part. A quenched and tempered part does not have the same dimensional accuracy as a part that has not undergone such a process. Also, they can affect the efficiency of the overall process. In carburizing, the carbon can be in any of the solid, liquid, or gas phases. Although using carbon in the solid phase is usually the safest and easiest of these to work with, the process is difficult to control and the heating is inefficient. All these things must come into consideration when choosing a diffusion hardening process.

Read more about this topic:  Diffusion Hardening

Other articles related to "types, type":

Types of Graphemes
... The principal types of graphemes are logograms, which represent words or morphemes (for example, Chinese characters, or the ampersand representing the English word and also Arabic numerals) syllabic ... For a full discussion of the different types, see Writing system Functional classification of writing systems ...
Prolog - Extensions - Types
... Attempts to introduce types date back to the 1980s, and as of 2008 there are still attempts to extend Prolog with types ... Type information is useful not only for type safety but also for reasoning about Prolog programs ...
Small Boat Anchors - Bruce or Claw Anchor
... Claw-types set quickly in most seabeds and although not an articulated design, they have the reputation of not breaking out with tide or wind changes, instead slowly ... Claw types have difficulty penetrating weedy bottoms and grass ... ratio and generally have to be oversized to compete with other types ...
Netwar - Network Structures
... and Ronfeldt point to three basic types of networks that may be used by netwar actors Chain network – typified by smuggling networks, where end-to-end exchanges (information, contraband, etc.) must travel back ... Netwar actors may also take on hybrid forms as well, blending different types of networks and hierarchies ... same group may be networked to each other through different types of network structures ...

Famous quotes containing the word types:

    ... there are two types of happiness and I have chosen that of the murderers. For I am happy. There was a time when I thought I had reached the limit of distress. Beyond that limit, there is a sterile and magnificent happiness.
    Albert Camus (1913–1960)

    Our children evaluate themselves based on the opinions we have of them. When we use harsh words, biting comments, and a sarcastic tone of voice, we plant the seeds of self-doubt in their developing minds.... Children who receive a steady diet of these types of messages end up feeling powerless, inadequate, and unimportant. They start to believe that they are bad, and that they can never do enough.
    Stephanie Martson (20th century)

    Science is intimately integrated with the whole social structure and cultural tradition. They mutually support one other—only in certain types of society can science flourish, and conversely without a continuous and healthy development and application of science such a society cannot function properly.
    Talcott Parsons (1902–1979)