A Mssbauer Study of the retained austenite in A-B ductile iron

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A Mssbauer Study of the retained austenite in A-B ductile iron

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- A Mssbauer Study of the retained austenite in A-B ductile iron
- NUCLEAR TECHNIQUES Issue 12, (1995)
- 作者机构：
  
  1. 清华大学
  2. 中汽总公司重庆汽车研究所
  3. 清华大学中汽总公司重庆汽车研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： O433.4
- Published：01 December 1995
- 稿件说明：
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[1]高乃飞,刘源源,马鸣图,聂晓霖.用穆斯堡尔谱研究奥贝球铁应变时残余奥氏体的结构及其转变[J].核技术,1995(12):722-727.

A Mssbauer Study of the retained austenite in A-B ductile iron[J]. Nuclear techniques, 1995, (12).
[1]高乃飞,刘源源,马鸣图,聂晓霖.用穆斯堡尔谱研究奥贝球铁应变时残余奥氏体的结构及其转变[J].核技术,1995(12):722-727. DOI：

A Mssbauer Study of the retained austenite in A-B ductile iron[J]. Nuclear techniques, 1995, (12). DOI：

摘要

用穆斯堡尔港学对奥贝球铁在拉伸应变和循环疲劳应变中残余奥氏体含量与结构变化进行了研究．研究表明：在这两种应变下残余奥氏体含量随拉伸应变量或循环应变幅的增加而减少，同时残余奥氏体的结构可以分解成Ｆｅ原子周围无碳原子存在和Ｆｅ原子周围有碳原子存在两种结构．后一种是与残余奥氏体结构Ｆｅ的面心立方结构间隙中有碳原子进入的情况相对应．这两种结构在残余奥氏体中的百分比与拉伸应变量或循环应变辐以及热处理工艺有关．

Abstract

By using the Mossbauer spectre

the chang6 of cobment and structure of the retained austenite have been studied for A-B ductile iron under the tensile strain and recycle fatigue Btrain.It is shown that content of the retained austenite decreases with increasing strain and the micro-structure of the reclined austenite can be resolved intO two kinds of strictMe:one with and the other without C atoms arotmd Fe atoms.The existential carbon atoms eDter the interstices of the Fe fee sbocfore.The r.elative percentage of the two kinds of sboctnye depends on the strain and treshoellt Process.

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