WANG Huaming Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
ChinaZHANG Qing Central Iron and Steel Research Institute
,
Ministry of Metallurgical Industry
,
Beijing
,
ChinaSHAO Hesheng Beijing Graduate School
,
China University of Mining and Technology
,
Beijing
,
China Institute of Metal Research
,
Academia Sinica
,
Shenyang 110015
,
China
金属学报(英文版)
The role of austenite in impact-abrasion process was studied on the basis of the impact-abrasion test results of a newly developed austenite-bainitic ferrite dual-phase abrasion-resistant steel with high strength,high toughness and high strain-hardening ability. It is found that the morphology,distribution and mechanical stability,rather than the volume fraction,of austenite govern the impact abrasion behaviour.Only the appropriate amount of fine and evenly dispersed austenite with adequate mechanical stability in high strength matrices,contribute effectively to the irnpact-abrasion resistance of the materials.While large quantity of coarse austenite with poor mechanical stability,especially when it acted as a continuous matrix of the material,is extremely detrimental to impact-abrasion resistance.
关键词:
austenite
,
null
,
null
,
null
王华明
,
张清
,
邵荷生
金属学报
本文在新型高强韧性奥氏体-贝氏铁素体高碳低合金钢冲击磨料磨损试验结果基础上,讨论了奥氏体在冲击磨损过程中的作用。发现只有在具有一定韧性的高强度基体组织中一定量高度分散分布的稳定性较高的奥氏体,才对抗冲击磨损有利,而组织中大量粗大的机械稳定性较低的奥氏体,尤其是作为连续基体存在时,对冲击磨损抗力极为有害。
关键词:
奥氏体
,
wear resistance
,
austenite
