Microstructure and Oxidation Resistance of Fe3Al Coatings on Austenitic Stainless Steel by Spark Plasma Sintering

2009 ◽  
Vol 6 (S1) ◽  
pp. S941-S943 ◽  
Author(s):  
Akio Nishimoto ◽  
Katsuya Akamatsu
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Oxidation Resistance ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma

Boronizing of AISI 316L Stainless Steel Using Spark Plasma Sintering Technique

2020 ◽  
Vol 405 ◽  
pp. 3-10
Author(s):  
Akio Nishimoto ◽  
Tatsuki Kubo
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Austenitic Stainless Steel ◽  
Spark Plasma Sintering ◽  
Applied Pressure ◽  
Stainless Steel Surface ◽  
Hardness Profile ◽  
Aisi 316L ◽  
Plasma Sintering ◽  
Spark Plasma

Austenitic stainless-steel has been widely used. Although it offers excellent corrosion resistance, processability, and nonmagnetic properties, it is inferior in terms of wear resistance and hardness. Therefore, the purpose of this study is to form iron boride on an austenitic stainless-steel surface using the spark plasma sintering (SPS) method and to evaluate its properties. The SPS method was utilized because the rapid heating involved in the process reduces the processing time. AISI 316L as a sample material was boronized for 3.6 ks at 1073 – 1273 K at applied pressures of 4 MPa and 8 MPa with a powder mixture of B4C and KBF4. The Vickers hardness profile results showed that the hardness of the untreated sample was ~ 200 HV whereas that of the boronized sample was ~ 2300 HV. The wear test profile showed that the wear resistance of the boronized sample was significantly improved. Moreover, according to elemental analyses, boron diffused from the sample surface to 200 μm and 60 μm when the applied pressure was 8 MPa and 4 MPa, respectively. This indicated that boron diffused to a greater depth when the applied pressure was increased.

scholarly journals Study on high-strength high-N austenitic stainless steel prepared by spark plasma sintering

2021 ◽  
Vol 2044 (1) ◽  
pp. 012041
Author(s):  
Ling Hu ◽  
Zhongmei Zhang ◽  
Liejun Li ◽  
Hanlin Peng ◽  
Jixiang Gao
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Spark Plasma Sintering ◽  
High Strength ◽  
Plasma Sintering ◽  
Spark Plasma

Functionally Graded Nano Hardmetal Materials Made by Spark Plasma Sintering Technology

2005 ◽  
Vol 23 ◽  
pp. 179-182 ◽  
Author(s):  
Xinglong Tan ◽  
Shaoyu Qiu ◽  
Wenyan He ◽  
Daifu Lei
Keyword(s):  
Stainless Steel ◽  
Internal Stress ◽  
Spark Plasma Sintering ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
The Other ◽  
Graded Materials ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sintering Processes

The properties of nano WC/Co hardmetals prepared by different Spark Plasma Sintering processes were measured. A 4-layer Functionally Graded Materials (FGM) was also obtained by Spark Plasma Sintering technology (SPS), starting from powders of nano WC/10%Co, nano WC/12%Co, micro WC/15%Co and stainless steel disk. The other 3-layer FGM was made from powders of nano 21%Al2O3/ZrO2, nickel and stainless steel. The SPS processing led to FGM free of internal stress, which was measured using Vickers indentations.

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