Thermal expansion coefficients in Invar processed by selective laser melting
نویسندگان
چکیده
منابع مشابه
Anisotropic Thermal Expansion and Cooperative Invar/Anti-Invar Effects in MnNi Alloy
T. Yokoyama 2 and K. Eguchi (IMS, The Grad. Univ. for Adv. Stud.) Thermal expansion of a tetragonal Mn88Ni12 alloy, which exhibits significant anisotropy, was investigated by EXAFS and path-integral quantum mechanical simulations. The EXAFS reveals that the Mn local environment is actually tetragonally distorted, while the Ni one retains its inherent cubic-like symmetry. The large thermal expan...
متن کاملMechanical Properties of Pure Titanium Models Processed by Selective Laser Melting
The influence of laser processing parameters on mechanical properties and microstructure of pure titanium models made by selective laser melting is investigated. The density of the models can reach higher than 95% under proper conditions. Although the tensile strength test shows results comparable to the wrought material, the impact and torsional fatigue strengths are low because of porosity an...
متن کاملMechanical and Thermal Expansion Behavior of Laser Deposited Metal Matrix Composites of Invar and TiC
For laser assisted Shape Deposition Manufacturing (SDM), residual stresses caused by the temperature gradient and material property mismatches result in part inaccuracy, warpage, or even delamination. The use of low coefficient of thermal expansion (CTE) materials such as Invar promises to reduce deformations caused by internal stresses [2]. Thus, to obtain high quality of prototypes for moldin...
متن کاملModeling of selective laser sintering/selective laser melting
Selective laser sintering and selective laser melting are powder based additive manufacturing (AM) process that can rapidly manufacture parts with comparable mechanical properties to conventional manufacturing methods directly from digital files. However, the processing recipe development and design optimization of AM parts are often based on trial and error which erodes the benefit of AM. Mode...
متن کامل0 ” Cold Melting ” of Invar Alloys
An anomalously strong volume magnetostriction in Invars may lead to a situation when at low temperatures the dislocation free energy becomes negative and a multiple generation of dislocations becomes possible. This generation induces a first order phase transition from the FCC crystalline to an amorphous state, and may be called " cold melting ". The possibility of the cold melting in Invars is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Materials Science
سال: 2017
ISSN: 0022-2461,1573-4803
DOI: 10.1007/s10853-017-1169-4