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| EFFECT OF ISOTHERMAL QUENCHING ON STRUCTURE AND PROPERTIES OF 30CrMnSiNi2A STEEL |
| ZHANG Baiwei;ZHANG Zhenfang;LI Shuqing Institute of Metal Research;Academia Sinica;Shenyang;ZHANG Xinghua Shenyang Aircraft Corporation |
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Cite this article:
ZHANG Baiwei;ZHANG Zhenfang;LI Shuqing Institute of Metal Research;Academia Sinica;Shenyang;ZHANG Xinghua Shenyang Aircraft Corporation. EFFECT OF ISOTHERMAL QUENCHING ON STRUCTURE AND PROPERTIES OF 30CrMnSiNi2A STEEL. Acta Metall Sin, 1985, 21(5): 13-19.
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Abstract An investigation was made of the effect of the isothermal quenching at dif-ferent temperatures in the martensitic range on the structure and properties of 30CrMnSiNi2A steel.To sum up the results from the tests of stress corrosion,lowcyclic fatigue,fracture toughness,fracture feature and conventional mechanicalproperties,the optimum isothermal quenching regime was ascertained.Experimentalresults show that the superior comprehensive properties of the steel may be ob-tained by treatment of isothermal quenching at 285℃ then tempering at 280℃.It is believed that the lower bainite and residual austenite are the chief factors inimprovement of toughness and plasticity of the steel,however,the tempered mar-tensite is an important factor to ensure its high strength.
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Received: 18 May 1985
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1 西北工业大学401教研室,国营峨嵋机械厂,未公开发表资料,1977．
2 潘雅琴;张颂华;张自国;北京航空学院,未公开发表资料,1979．
3 富田惠之;宫本启太;冈林邦夫,铁钢,64(1978) ,759．
4 Judy,R.W.,Jr.;Goode,R.J.,NRL Report,7865 AD-A008 119,(1975) . |
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