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dui ji ti wu xiang bian di wen hua xue re chu li zhong yi xie wen ti de tan tao
Author(s): 
Pages: 56-59
Year: Issue:  5
Journal: Heat Treatment of Metals

Keyword:  低温化学热处理铁素体奥氏体状态硫氮碳共渗相变渗氮钢有色金属基体相处理温度新工艺;
Abstract: <正> 一、对铁素体状态和奥氏体状态的化学处理名词的商榷目前,国内外都将处理温度高于Ac1的渗碳、渗铬等工艺称为奥氏体状态的化学热处理;处理温度低于Ac1(大多≤650℃)的渗氮、氮碳共渗等工艺则称之为铁素体状态的化学热处理。奥氏体与铁索体是指钢铁材料的基体相,不包括有色金属及其合金。如钛合金渗氮等化学热处理,显然不应纳入铁素体状态化学热处理范畴;又如钨、钼合金渗硅、钛合金渗硼等,也并不是奥氏体状态的化学热处理。鉴于有色金属及合金的化学热处理越来越受到重视,并已付诸实践,笔
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