Technology to Eliminate Mn Segregation in Unalloyed Austempered Ductile Iron

Liu Shengfa

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Technology to Eliminate Mn Segregation in Unalloyed Austempered Ductile Iron
Issue 1, Pages: 12-14(2002)
Published： 2002 ，
DOI：

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[1]刘生发.消除非合金奥贝球铁中锰偏析的工艺[J].特种铸造及有色合金,2002(01):12-14+2.

Liu Shengfa. Technology to Eliminate Mn Segregation in Unalloyed Austempered Ductile Iron. [J]. Special Casting & Nonferrous Alloys (1):12-14(2002)
[1]刘生发.消除非合金奥贝球铁中锰偏析的工艺[J].特种铸造及有色合金,2002(01):12-14+2. DOI：

Liu Shengfa. Technology to Eliminate Mn Segregation in Unalloyed Austempered Ductile Iron. [J]. Special Casting & Nonferrous Alloys (1):12-14(2002) DOI：

摘要

研究了消除非合金奥贝球铁中锰 [w（Mn） =0 .8% ]偏析和不利影响的工艺措施。通过增加硅含量

强化孕育处理

降低奥氏体化温度以及等温淬火后进行回火处理等措施

均可消除锰含量增高对组织和性能的不利影响

Abstract

The technological measures was studied to eliminate segregation and detrimental effect of w（Mn） = 0.8% in UADI. The detrimental effects of high Mn content on microstmcture and properties were eliminated through the increase of Si content

the enhancing of inoculation

the decrease of austenizied temperature and temper treatment after isothermal quenching.