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  2. Abrasion resistant steel - Wikipedia

    en.wikipedia.org/wiki/Abrasion_resistant_steel

    Abrasion resistant steel undergoes a two-step heat treatment process called quenching and tempering, which alters the steel's grain structure to increase hardness and toughness. [ 2 ] During the quenching phase, the steel is heated to an above-critical temperature and is then rapidly cooled with water.

  3. List of body armor performance standards - Wikipedia

    en.wikipedia.org/wiki/List_of_body_armor...

    The VPAM scale as of 2009 runs from 1 to 14, with 1-5 being soft armor, and 6-14 being hard armor. [1] Tested armor must withstand three hits, spaced 120 mm (4.7 inches) apart, of the designated test threat with no more than 25 mm (0.98 inches) of back-face deformation in order to pass.

  4. Advanced Modular Armor Protection - Wikipedia

    en.wikipedia.org/wiki/Advanced_Modular_Armor...

    Advanced Modular Armor Protection (AMAP) is modular composite armour concept, developed by the German company IBD Deisenroth Engineering, since 2019 part of Rheinmetall Protection Systems. According to IBD AMAP is a 4th generation composite armour, making use of nano-ceramics and modern steel alloy technologies. [ 1 ]

  5. Aermet - Wikipedia

    en.wikipedia.org/wiki/Aermet

    AerMet alloy is an ultra-high strength type of martensitic [1] alloy steel.The main alloying elements are cobalt and nickel, but chromium, molybdenum and carbon are also added.

  6. Rolled homogeneous armour - Wikipedia

    en.wikipedia.org/wiki/Rolled_homogeneous_armour

    From the invention of tanks through to the Second World War, tank armour increased in thickness to resist the increasing size and power of anti-tank guns.A tank with sufficient armour could resist the largest anti-tank guns then in use.

  7. Strengthening mechanisms of materials - Wikipedia

    en.wikipedia.org/wiki/Strengthening_mechanisms...

    In other words, it is the movement of dislocations in the material which allows for deformation. If we want to enhance a material's mechanical properties (i.e. increase the yield and tensile strength), we simply need to introduce a mechanism which prohibits the mobility of these dislocations. Whatever the mechanism may be, (work hardening ...

  8. Toughening - Wikipedia

    en.wikipedia.org/wiki/Toughening

    Therefore, toughness of titanium alloy is decreased. Multiple vacuum arc melting (VAR) technique can be used to minimize the oxygen content and increase the toughness of the alloy. Similarly, phosphorus in steels can decrease toughness dramatically. Phosphorus can segregate on grain boundary and lead to intergranular fracture. [6]

  9. Compact tension specimen - Wikipedia

    en.wikipedia.org/wiki/Compact_tension_specimen

    The stress intensity factor at the crack tip of a compact tension specimen is [4] = [() / / + / / + /] where is the applied load, is the thickness of the specimen, is the crack length, and is the effective width of the specimen being the distance between the centreline of the holes and the backface of the coupon.