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金属学报  1980, Vol. 16 Issue (2): 159-256    
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合金钢与高温合金中的硫碳化钛
张菊水;陈家光
大冶钢厂钢铁研究所;大冶钢厂钢铁研究所
A TITANIUM CARBOSULPHIDE PHASE IN ALLOY STEELS AND SUPERALLOYS
Zhang Jushui;Chen Jiaguang Research Institute of Daye Steel Works
引用本文:

张菊水;陈家光. 合金钢与高温合金中的硫碳化钛[J]. 金属学报, 1980, 16(2): 159-256.
, . A TITANIUM CARBOSULPHIDE PHASE IN ALLOY STEELS AND SUPERALLOYS[J]. Acta Metall Sin, 1980, 16(2): 159-256.

全文: PDF(2928 KB)  
摘要: 采用金相、电子探针、透射电子显微镜及选区电子衍射等多种方法研究了几种低合金钢、不锈钢和高温合金中硫碳化钛的形态、光学特性、晶体结构和化学组成,论述了该相的两种不同形成机理以及稀土元素对显著减少钢中这种脆性相含量的有利作用. 所研究的硫碳化物可以用化学式(Ti_(1-m)X_m)_2S(C_(1-n)N_n)表示.它们在钢中呈现沿加工方向排列并沿原始奥氏体晶界分布的板条状以及沿奥氏体晶界沉淀的极薄的薄片状两种不同形态.前者是钢和合金凝固过程中形成的,而后者是经高温加热后的冷却过程中重新沉淀的.
Abstract:The morphology, optical characteristics and composition of a titanium carbo-sulphide phase ccurred in certain low-alloy steels, stainless steels and superalloyshave been investigated by optical icroscopy, TEM and EPMA. Its crystallinestructure has been identified by selected-area electron diffraction echnique. Depend-ing on the mechanism of formation, this phase exhibits two different growthhabits: latelets formed directly from the molten alloy are distributed at cast grainboundries, while very thin aminae were precipitated at austenitic grain bound-aries during cooling from a high temperature. It appears hat the amount of thisbrittle phase in the alloys can be greatly diminished by the addition of smallamounts f rare-earth elements. The composition of this phase is found as:(Ti_(1-m)X_m)_2S(C_(1-n)N_n)
收稿日期: 1980-02-18     
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