马氏体沉淀硬化不锈钢叶轮锻件韧性偏低的机理分析及解决措施  

Mechanism Analyzing and Solving Measures of Low Toughness of Impeller Forging Made of Martensitic Precipitation Hardening Stainless Steel

作　　者：李荣鹏[1] 康煜平[1] 谭明照[2] 谭朝鑫[3] 李昌林[3] 

机构地区：[1]沈阳工业大学,沈阳市110022 [2]沈阳奉楚金属材料有限公司 [3]沈阳鼓风机(集团)有限公司

出　　处：《风机技术》2005年第3期17-22,共6页Chinese Journal of Turbomachinery

摘　　要：为解决压缩机叶轮部件STSH钢韧性偏低的情况,通过对材料的试验分析得出影响钢韧性的条件。对其进行锻造工艺规范及热处理来减少δ-铁素体数量,改善其形态、大小及分布,从而显著提高了STSH钢的强韧性。In order to solve the low toughness condition of STSH steel with compressor impeller, the condition which effect steel toughness is obtained by testing and analyzing the material. The reasonable forging technology criterion and heat treatment is made to decrease the number of δ-ferrite, improve its shape, size and distribution, the strength and toughness of STSH steel is improved.

关 键 词：离心式压缩机 叶轮 STSH钢 锻造 热处理 

分 类 号：TH142.15[一般工业技术—材料科学与工程] TG161[机械工程—机械制造及自动化]