1.4468高强度双相不锈钢的精铸

马孝林

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1.4468高强度双相不锈钢的精铸
1.4468 High Strength Stainless Steel with Two Phase in Investment Casting
2006年第4期页码：231-233
纸质出版日期： 2006 ，
DOI：

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[1]马孝林.1.4468高强度双相不锈钢的精铸[J].特种铸造及有色合金,2006(04):231-233+191.

Ma Xiaolin. 1.4468 High Strength Stainless Steel with Two Phase in Investment Casting[J]. Special Casting & Nonferrous Alloys, 2006,(4):231-233.
[1]马孝林.1.4468高强度双相不锈钢的精铸[J].特种铸造及有色合金,2006(04):231-233+191. DOI：

Ma Xiaolin. 1.4468 High Strength Stainless Steel with Two Phase in Investment Casting[J]. Special Casting & Nonferrous Alloys, 2006,(4):231-233. DOI：

摘要

介绍了德国1.4468高强度双相不锈钢的化学成分、金相组织、性能和精铸工艺特点。分析了合金元素在高强度双相不锈钢中的作用以及合金元素和热处理工艺对组织和性能的影响。1.4468双相不锈钢的精铸应设置较大的浇冒口

以保证充分补缩;熔炼时脱氧应充分

并严格控制浇注温度

以避免出现毛刺、气孔、充型不良等缺陷。

Abstract

The chemical composition

microstructure

properties of 1.4468 （German brand ）high strength stainless steel with two phases and its technological features were introduced.Effects of alloying elements in the stainless steel and heat treatment on microstructure and mechanical properties were analyzed.Larger riser should be set in investment casting to ensure the full feeding for the stainless steel.Deoxidation should be fully conducted during smelting process

and the pouring temperature should be strictly controlled to eliminate some defects including gas hole and inadequate filling as well as veining.