scholarly journals Neutron Diffraction Measurement of Residual Stress in High Melting Point Metals Processed by 3D Printing

2018 ◽  
Vol 36 (6) ◽  
pp. 14-20
Author(s):  
Dong-Kyu Kim ◽  
Wanchuck Woo
Keyword(s):  
Residual Stress ◽  
Melting Point ◽  
3D Printing ◽  
Neutron Diffraction ◽  
Diffraction Measurement ◽  
High Melting ◽  
High Melting Point ◽  
Neutron Diffraction Measurement

Neutron diffraction measurement of residual stress in a centrifugal bowl of duplex steel

2001 ◽  
Vol 9 (2) ◽  
pp. 305-312 ◽  
Author(s):  
Gianni Albertini ◽  
Ru Lin Peng ◽  
Adrian Manescu ◽  
Araldo Ponzetti
Keyword(s):  
Residual Stress ◽  
Neutron Diffraction ◽  
Diffraction Measurement ◽  
Neutron Diffraction Measurement ◽  
Duplex Steel

Comparison of Brazed Residual Stress and Thermal Deformation between X-Type and Pyramidal Lattice Truss Sandwich Structure: Neutron Diffraction Measurement and Simulation Study

2016 ◽  
Vol 35 (6) ◽  
pp. 567-574 ◽  
Author(s):  
Wenchun Jiang ◽  
Zhiquan Wei ◽  
Yun Luo ◽  
Weiya Zhang ◽  
Wanchuck Woo
Keyword(s):  
Residual Stress ◽  
Neutron Diffraction ◽  
Residual Stresses ◽  
Sandwich Structure ◽  
Thermal Deformation ◽  
Diffraction Measurement ◽  
Neutron Diffraction Measurement ◽  
Pyramidal Structure ◽  
Transverse Stresses ◽  
Type Lattice

AbstractThis paper uses finite element method and neutron diffraction measurement to study the residual stress in lattice truss sandwich structure. A comparison of residual stress and thermal deformation between X-type and pyramidal lattice truss sandwich structure has been carried out. The residual stresses are concentrated in the middle joint and then decreases gradually to both the ends. The residual stresses in the X-type lattice truss sandwich structure are smaller than those in pyramidal structure. The maximum longitudinal and transverse stresses of pyramidal structure are 220 and 202 MPa, respectively, but they decrease to 190 and 145 MPa for X-type lattice truss sandwich structure, respectively. The thermal deformation for lattice truss sandwich panel structure is of wave shape. The X-type has a better resistance to thermal deformation than pyramidal lattice truss sandwich structure. The maximum wave deformation of pyramidal structure (0.02 mm) is about twice as that of X-type (0.01 mm) at the same brazing condition.

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