Sacrificial Materials and Release Etchants for Metal MEMS That Reduce or Eliminate Hydrogen-Induced Residual Stress Change

2021 ◽  
pp. 1-7
Author(s):  
Longchang Ni ◽  
Maarten P. de Boer
Keyword(s):  
Residual Stress ◽  
Stress Change ◽  
Sacrificial Materials

Retained Austenite Transformation-Induced Residual Stress Change in Carburized 16MnCr5 Steel

2022 ◽  
Vol 50 (3) ◽  
pp. 20210457
Author(s):  
Wanhua Liang ◽  
James Pineault ◽  
F. Albrecht Conle ◽  
Timothy H. Topper
Keyword(s):  
Residual Stress ◽  
Retained Austenite ◽  
Stress Change ◽  
Austenite Transformation

Study on surface roughness and residual stress change during cold forging.

2017 ◽  
Vol 2017.55 (0) ◽  
pp. K0303
Author(s):  
Nuwan KARUNATHILAKA ◽  
Naoya TADA ◽  
Takeshi UEMORI ◽  
Toshiya NAKATA ◽  
Masahiro KAWANO
Keyword(s):  
Residual Stress ◽  
Surface Roughness ◽  
Stress Change ◽  
Cold Forging

scholarly journals Residual stress change in multistage grinding

Procedia CIRP ◽  
2020 ◽  
Vol 87 ◽  
pp. 186-191
Author(s):  
Ewald Kohls ◽  
Robert Zmich ◽  
Carsten Heinzel ◽  
Daniel Meyer
Keyword(s):  
Residual Stress ◽  
Stress Change

Residual stress change by thermal annealing in amorphous Sm−Fe−B thin films

2002 ◽  
Vol 239 (1-3) ◽  
pp. 570-572 ◽  
Author(s):  
S.M. Na ◽  
S.J. Suh ◽  
H.J. Kim ◽  
S.H. Lim
Keyword(s):  
Thin Films ◽  
Residual Stress ◽  
Thermal Annealing ◽  
Stress Change

scholarly journals Experimental and Numerical Analysis of Residual Stress Change Caused by Thermal Loads During Grinding

Procedia CIRP ◽  
2016 ◽  
Vol 45 ◽  
pp. 51-54 ◽  
Author(s):  
Sven Kuschel ◽  
Benjamin Kolkwitz ◽  
Jens Sölter ◽  
Ekkard Brinksmeier ◽  
Carsten Heinzel
Keyword(s):  
Residual Stress ◽  
Numerical Analysis ◽  
Stress Change ◽  
Thermal Loads

TEM investigations of surface residual stress relaxation in A12O3 and Al2O3-SiC nanocomposite

1994 ◽  
Vol 52 ◽  
pp. 628-629
Author(s):  
J. Fang ◽  
H. M. Chan ◽  
M. P. Harmer
Keyword(s):  
Residual Stress ◽  
Single Phase ◽  
Stress Relief ◽  
Stress Recovery ◽  
Surface Residual Stress ◽  
Microscopic Mechanism ◽  
Sic Particles ◽  
Annealing Procedure ◽  
The Difference ◽  
Nano Size

It was Niihara et al. who first discovered that the fracture strength of Al2O3 can be increased by incorporating as little as 5 vol.% of nano-size SiC particles (>1000 MPa), and that the strength would be improved further by a simple annealing procedure (>1500 MPa). This discovery has stimulated intense interest on Al2O3/SiC nanocomposites. Recent indentation studies by Fang et al. have shown that residual stress relief was more difficult in the nanocomposite than in pure Al2O3. In the present work, TEM was employed to investigate the microscopic mechanism(s) for the difference in the residual stress recovery in these two materials.Bulk samples of hot-pressed single phase Al2O3, and Al2O3 containing 5 vol.% 0.15 μm SiC particles were simultaneously polished with 15 μm diamond compound. Each sample was cut into two pieces, one of which was subsequently annealed at 1300° for 2 hours in flowing argon. Disks of 3 mm in diameter were cut from bulk samples.

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