TY  - JOUR
EP  - 142
PB  - Elsevier
SN  - 00325910
TI  - Effects of solid loading and cooling rate on the mechanical properties and corrosion behavior of powder injection molded 316 L stainless steel
SP  - 135
N1  - cited By 23
AV  - none
VL  - 289
JF  - Powder Technology
A1  - Raza, M.R.
A1  - Ahmad, F.
A1  - Muhamad, N.
A1  - Sulong, A.B.
A1  - Omar, M.A.
A1  - Akhtar, M.N.
A1  - Aslam, M.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949505934&doi=10.1016%2fj.powtec.2015.11.063&partnerID=40&md5=b1b7460db0538507275c150b98f2beb5
Y1  - 2016///
ID  - scholars7225
KW  - Chromium; Cooling; Corrosion; Corrosion resistance; Corrosive effects; Injection molding; Mechanical properties; Medical applications; Morphology; Powder metallurgy; Sintering; Stainless steel
KW  -  316 L stainless steel; Biomedical applications; Cooling rates; Corrosion behavior; Effective parameters; High cooling rates; Powder injection molding; Solid loading
KW  -  Loading
KW  -  chromium; stainless steel
KW  -  Article; chemical analysis; chemical phenomena; chemical reaction; chemical structure; controlled study; cooling; corrosion; density; flow measurement; mechanics; physical chemistry; porosity; solid loading; surface property; tensile strength; torque
N2  - Solid loading and post-sintered cooling rates are two effective parameters used to control the mechanical properties of powder-injection molded parts. In the case of 316 L stainless steel (SS), these parameters also influence mechanical properties and corrosion resistance. In this study, four formulations with powder loading above and below the critical powder loading were prepared and sintered at 1325. °C in vacuum with cooling rates varying from 3. °C/min to 10. °C/min. Solid loadings above the critical loading caused reductions in final properties (i.e. mechanical properties and corrosion resistance) because of increased porosity. The high cooling rate of 10. °C/min improved the mechanical properties due to the formation of large number of grains and corrosion resistance due to formation of chromium oxide layer at the surface of PIM 316 L SS. Solid loading of 65 vol., sintered at 1325. °C with a cooling rate of 10. °C/min showed improvements in terms of mechanical properties and corrosion resistance compared with conventional 316 L SS. Such improvements were considered due to reduced grain sizes and formation of a chromium oxide layer on the sample surface. This study identifies the solid loading (65. vol.) below the critical powder loading and a high post-sintered cooling rate, i.e., 10. °C/min, are suitable to achieve optimum mechanical properties and corrosion resistance in 316 L SS. The developed material may be recommended for biomedical applications. © 2015.
ER  -