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Wear of plasma nitrided and nitrocarburised AISI 316L austenitic stainless steel
Wear of plasma nitrided nitrocarburised AISI 316L stainless steel
2010/6/12
The use of coatings and surface engineered components is increasing and is driven by the need for improved hardness, corrosion and wear resistance [1]. Austenitic stainless steels are the most importa...
An investigation on fatigue life of borided AISI 1010 steel
Boriding Fatigue life AISI 1010 steel
2009/12/14
Purpose: This study aims to investigate the fatigue life of box borided AISI 1010 steel materials.
Design/methodology/approach: Fatigue specimens firstly have been prepared according to ASTM E466-96 ...
Purpose: Main aim of this paper is to describe the plastic deformation executed by ECAP on low cycle fatigue
of steel AISI 316. Among others was attention fixed on mechanical properties after this tr...
Optimization of Process Variables in Gas Carburizing Process:A Taguchi Study with Experimental Investigation on SAE 8620 and AISI 3310 Steels
Quality Gas carburizing Process variables Optimization Taguchi method
2009/10/10
The utilization of surface engineered materials in various engineering elds has undergone a tremendous increase in recent years, and the need for proper surface engineering of materials has thus incr...
Adhesion of composite carbon/hydroxyapatite coatings on AISI 316L medical steel
Hydroxyapatite Carbon coatings Adhesion Medical steel
2009/4/21
In this paper are contains the results of studies concerning the problems associated with increased of hydroxyapatite (HAp) adhesion,manufactured by using Pulse Laser Deposition (PLD) method, to the...
Adhesion of composite carbon/hydroxyapatite coatings on AISI 316L medical steel
Hydroxyapatite Carbon coatings Adhesion Medical steel
2009/4/21
In this paper are contains the results of studies concerning the problems associated with increased of hydroxyapatite (HAp) adhesion,manufactured by using Pulse Laser Deposition (PLD) method, to the...
Corrosion behaviour of AISI 316L steel in artificial body fluids
Metallic alloys Biomaterials Corrosion Body fluids
2008/12/30
Purpose: The paper presents the comparison of corrosion resistance of AISI 316L stainless steel in various
corrosive media such as artificial urine, Tyrode’s physiological solution and artificial pla...
表面机械研磨诱导AISI 304不锈钢表层纳米化 I. 组织与性能
表面机械研磨 AISI 304不锈钢
2008/9/10
采用表面机械研磨处理(SMAT)在AISI 304不锈钢上制备出纳米结构表层, 研究纳米化行为及其对硬度的影响. 结果表明: 经过SMAT后, 样品表面形成了厚度约为30 μm的纳米晶层, 显微组织由平均晶粒尺寸约为10 nm的单一马氏体相演变为尺寸稍大的双相组织; 在距表面30-300μm的范围内, 显微组织由以亚微米级的奥氏体多系孪晶为主逐渐演变为单系孪晶. 表面纳米化是晶粒碎化与纳米尺度新相...
表面机械研磨诱导AISI 304不锈钢表层纳米化 II. 晶粒细化机理
表面机械研磨 AISI 304不锈钢 表面纳米化
2008/9/10
采用表面机械研磨处理(SMAT)在AISI 304不锈钢上制备出纳米结构表层, 用透射电镜(TEM)研究组织演变过程. 晶粒细化机理可归纳如下: 位错在{111}面上滑移并相互交割形成网格结构; 单系孪晶形成并逐渐过渡到多系孪晶; 多系孪晶相互交割使晶粒尺寸不断减小, 并在孪晶交叉处形成了马氏体相; 孪晶系增多与孪晶重复交割强度加大使得细化晶粒的尺寸进一步减小; 最终在大应变量, 高应变速率和多方...
The structure of austenitic steel AISI 316 after ECAP and low-cycle fatigue
Structure Low-cycle fatigue Steel AISI 316
2008/6/30
Purpose: The article presents results of investigation of structure and properties of austenitic steel grade AISI 316 after application of Equal Channel Angular Pressing (ECAP) at the temperature of a...
环境对AISI 321不锈钢疲劳裂纹扩展过载效应的影响
环境 不锈钢 疲劳裂纹扩展
2007/12/27
研究了3.5%NaCl溶液对恒应力强度因子范围△K控制下AISI 321不锈钢疲劳裂纹扩展过截行为的影响. 与在空气中的结果比较表明, 两种条件下存在相似的过载延缓效应, 但是环境极大地削弱了过载对疲劳裂纹护展的延缓效应, 削弱程度随过载比不同而变化, 以“损失循环数”表征约为40%—70%, 以“过载影响区尺寸”表征则为30%—40%. 分析表明, 用“损失循环数”表征过载对裂纹护展的延缓效应不...
熔体过热对AISI 304不锈钢亚快速凝固薄带组织的影响
不锈钢 过热 枝晶间距 残余铁素体
2007/12/27
采用水冷铜模薄带铸造方法研究了熔体过热对AISI 304不锈钢亚快速凝固薄带组织的影响. 结果表明: AISI 304不锈钢亚快速凝固薄带由外层的胞状奥氏体组织、次外层的柱状铁素体枝晶组织和中心的等轴铁素体枝晶组织组成; 随着熔体过热度增加, 奥氏体胞晶间距和柱状铁素体二次枝晶间距随之增加, 残余铁素体含量亦降低. 过热度的增加降低了熔体过冷度和冷却速率, 造成薄带凝固组织中枝晶间距的增加和残余铁...
On low temperature ion nitriding of austenitic stainless steel AISI 316
Thermo-chemical treatment Nitriding S-phase Nitride layer
2007/11/30
Purpose: The purpose of this paper is to discuss some problems concerning the extremely high values of the nitride layer hardness and the features of so called S-phase which are formed after low-tempe...