%K 304 stainless steel; Experimental investigations; Micro-structural characterization; Oxy-acetylene gas flame; Oxyacetylene flame; Retained austenite; Substrates temperature; Type 304 stainless steel, Carbides; Crystal microstructure; Grain size and shape; Industrial engineering; Microstructure; Preheating, Stainless steel
%X An experimental investigation had been carried out for heating-only on samples of type 304 stainless steel with oxyacetylene gas flame set to neutral flame with temperature 2700°-3300°C. The flame effect on surface integrity was investigated in terms of hardness test and microstructural characterization. Substrates temperatures were raised to 355°C as well as 550°C while oxyacetylene flame travels at approximate of 74 mm/min along the span of the material. The experimental outcome revealed the microstructures from two examined conditions: Initial grain structures as well as grain structure when flame heated to 355°C has retained austenite crystal structure while flame heating to 5000-550°C revealed chromium carbide precipitates. Within the investigated temperature range of 500°-550°C, preheating was evidently proven to result to sensitization. © (2014) Trans Tech Publications, Switzerland.
%O cited By 1; Conference of 4th International Conference on Mechanical and Manufacturing Engineering, ICME 2013 ; Conference Date: 17 December 2013 Through 18 December 2013; Conference Code:101955
%L scholars4432
%J Applied Mechanics and Materials
%D 2014
%R 10.4028/www.scientific.net/AMM.465-466.1287
%T Influence of preheat flux on the microstructure of 304 stainless steel
%A A.U. Alkali
%A T.L. Gintar
%A H. Fawad
%A A.M. Abdulrani
%V 465-46
%C Bangi-Putrajaya
%P 1287-1291