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Home > Optimization of Deep Rolling Temperature for Fatigue Lifetime Enhancement of Martensitic Stainless Steel AISI 440C
 
Optimization of Deep Rolling Temperature for Fatigue Lifetime Enhancement of Martensitic Stainless Steel AISI 440C
Paper Type
Contributed Paper
Title
Optimization of Deep Rolling Temperature for Fatigue Lifetime Enhancement of Martensitic Stainless Steel AISI 440C
Author
Sai-yan Primee [a,b] and Patiphan Juijerm*[a]
Email
juijerm@gmail.com, fengppj@ku.ac.th
Abstract:

The martensitic stainless steel AISI 440C was cyclically deformed using rotary bending fatigue tester. The fatigue lifetime as well as performance of the martensitic stainless steel AISI 440C was represented by S-N curve. The conventional mechanical surface treatment (deep rolling at room temperature) was performed on martensitic stainless steel AISI 440C to enhance the fatigue lifetime of the martensitic stainless steel AISI 440C. Compressive residual stresses at the surface and in near-surface regions of the conventionally deep rolled condition served to inhibit and retard crack initiation and propagation as a result of higher fatigue lifetime. Its fatigue lifetime at a stress amplitude of 750 MPa was 2.9 x 106 cycles, whereas the fatigue lifetime of the untreated condition of only 91,000 cycles was detected. Furthermore, the conventional deep rolling was modified to the high-temperature deep rolling. It was found that the deep rolling at temperature of 300 °C possessed maximum fatigue lifetime (3 x 107 cycles). A superior fatigue lifetime of the high-temperature deep rolled condition can be attributed to the strain ageing effects.

 

Keywords: Fatigue; Deep rolling; Residual stress; Strain ageing; Stainless steel

 

Start & End Page
304 - 311
Received Date
2019-09-20
Accepted Date
2020-01-21
Full Text
Download
Correspondence:
Author Name
Patiphan Juijerm* - Department of Materials Engineering, Faculty of Engineering, Kasetsart University, 50 Ngamwongwan Rd., Ladyao, Jatujak, Bangkok 10900, Thailand.
Keyword:
Keyword
fatigue, deep rolling, residual stress, strain ageing, stainless steel,
Volume
Vol.47 No.2 (Special Issue I : March 2020)
 




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