Essays about: "Age Hardening"

Showing result 1 - 5 of 7 essays containing the words Age Hardening.

1. 1. Optimization of hot strip drawing test methodology for hot forming of aluminium alloys

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Rabia Arshad; [2022]
   Keywords : Hot forming of aluminium; friction; high temperature lubrication; strip draw; wear.;

   Abstract : The development of lightweight design for automotive applications has lasted for many years and is still increasing. Vehicles with light structures use less fuel, emit less CO2, and are better for the environment. READ MORE

3. 2. Low temperature embrittlement of duplex stainless steels : A study of alloying elements’ effect

   University essay from KTH/Materialvetenskap

   Author : Libang Lai; [2020]
   Keywords : Duplex stainless steels; low temperature embrittlement; phase separation; alloying element; vanadium addition; mechanical properties; Rostfria duplexstål; sprödhet vid låg temperatur; fasseparering; legeringselement; tillsats av vanadin; mekaniska egenskaper;

   Abstract : Duplex stainless steels (DSSs), consisting of an equal amount of ferrite and austenite phases, have wide applications in e.g. vehicles, chemical engineering as well as nuclear plant  because  of  the  combination  of  excellent  mechanical properties  and  corrosion resistance. READ MORE

4. 3. Material Transfer Mechanisms during Interaction of Aluminium Alloy and Tool Steel at Elevated Temperatures

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Gabriel Macêdo; [2020]
   Keywords : material transfer mechanisms; high temperature tribology; hot metal forming tribology; hot-stamping of aluminium alloys; aluminium alloys;

   Abstract : Hot stamping of aluminium alloys allows for increased formability, decreased springback and the possibility of integrating age-hardening heat treatments into the process. However, it can be challenging due to the occurrence of material transfer of aluminium onto the tool, as aluminium is prone to adhesion even at low temperatures. READ MORE

5. 4. Simulation of Hardening of the MahanaKhon Tower Mat Foundation

   University essay from KTH/Betongbyggnad

   Author : Zakaria Kazi-tani; [2019]
   Keywords : Hydration; MahanaKhon tower; mat foundation; young concrete; temperature development; thermal stresses; cracking; fly ash; finite element analysis; COMSOL Multiphysics; Hydratation; MahanaKhon tower; bottenplatta; ung betong; temperaturutveckling; termiska spänningar; sprickbildning; flygaska; finita elementanalys; COMSOL Multiphysics;

   Abstract : Cement hydration is the result of a series of simultaneous chemical reactions occurring during the production of concrete. An excessive amount of heat is generated, which consequently may give rise to thermal stresses and cause early age cracks in concrete that may affect its structural integrity, and load bearing capacity. READ MORE

6. 5. Micromechanical study of PFZ in aluminum alloys

   University essay from KTH/Hållfasthetslära (Inst.)

   Author : Hossein Shariati; [2016]
   Keywords : precipitate-free zones; strain gradient plasticity; mikromekanik;

   Abstract : There are a number of experiments showing that the ductility of aluminum alloys decreases during age-hardening heat treatment. Observing the grains of age-hardened aluminum alloys at the micron scale, one can notice that there are precipitate-free zones (PFZs) along the grain boundaries. READ MORE