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| EFFECT OF HOT WORKING CONDITIONS ON THE STRAIN-AGING OF LOW CARBON (0.18% C) STEELS |
| CHANG TSO-MEI;LI CHIEN-HWA Institute of Metal Research; Academia Sinica |
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Cite this article:
CHANG TSO-MEI;LI CHIEN-HWA Institute of Metal Research; Academia Sinica. EFFECT OF HOT WORKING CONDITIONS ON THE STRAIN-AGING OF LOW CARBON (0.18% C) STEELS. Acta Metall Sin, 1957, 2(3): 249-260.
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Abstract Under controlled hot working conditions, the specimens of killed and rimminglow carbon steels having different grain size and microstructure have been prepar-ed and subjected to strain-aging tests. In order to find out the effects of strainingand aging, impact, tensile, compression and hardness tests have been employed. The results show that it is possible to improve the properties of low carbonsteel against straining and aging by controlling the hot working conditions andthat the grain size and microstructure of killed steel may vary within fairly widelimits and yet its impact values after strain-aging may still remain within the re-quired standard; whereas strict control of the grain size and microstructure is ne-cessary in order to produce rimming steel of required impact value after strain-aging. It has been found that the impact and tensile test results show more promi-nently the effects of straining and aging; while the compression and hardness testresults are less consistent and do not yield so clear an information. Straining and aging is the combined effect of cold working and aging. Thecontribution of each of these two factors to the total effect of strain-aging varieswith the microstructure of steel.
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Received: 18 March 1957
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