Microstructure and mechanical properties of hot wire laser clad layers for repairing precipitation hardening martensitic stainless steel

2015 ◽  
Vol 75 ◽  
pp. 207-213 ◽  
Author(s):  
Peng Wen ◽  
Zhipeng Cai ◽  
Zhenhua Feng ◽  
Gang Wang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Precipitation Hardening ◽  
Martensitic Stainless Steel ◽  
Hot Wire ◽  
Microstructure And Mechanical Properties

Microstructure and Mechanical Properties of 0.63C-12.7Cr Martensitic Stainless Steel during Various Tempering Treatments

2008 ◽  
Vol 47-50 ◽  
pp. 274-277
Author(s):  
Yu Li Lin ◽  
Chih Chung Lin ◽  
Tsung Hsien Tsai ◽  
Hong Jen Lai
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Transformation Temperature ◽  
Martensitic Stainless Steel ◽  
Experimental Results ◽  
Microstructure And Mechanical Properties ◽  
Primary Carbides ◽  
Measured Hardness

In this study, the microstructure and mechanical properties of 0.63C-12.7Cr martensitic stainless steel during various tempering treatments were investigated. Experimental results demonstrate that finely distributed primary carbides can be observed in 0.63C-12.7Cr martensitic stainless steel. It was also found that the measured hardness of 0.63C-12.7Cr martensitic stainless steel after 300°C tempered treatment for 60 minutes can still reach to 677Hv. The variation of measured hardness was found not significant during tempering treatments (200°C-500°C). Moreover, owing to lower concentration of C and Cr, the matensitic transformation temperature Ms can be increased to 96.4°C comparing to -127°C of SUS440C materials.

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