Effect of Volume Fractions of Arc Sprayed Al Coatings on Tensile Properties of a Type 316 Steel Subs

来源 :材料热处理学报 | 被引量 : 0次 | 上传用户:kobe_lilei
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The effect of arc sprayed times, which are quantitatively described by the volume fraction of coatings, on the mechanical properties of type 316 steel, have been undertaken in the present work. Al wires were utilized as coatings materials. Tensile tests were carried out in the temperature range of Portevin-Le Chatelier (PLC) effect It has been found that grains at edges and corners of the 316 steel specimens have been dramatically constricted by grit blasting and spraying. Grit blasting has been found to exert a shot-peening effect on the mechanical properties of 316 steel specimens. Coatings with lower values of coating volume fraction strengthen the coated specimens in the very similar way as blasting. While if the volume fraction of coating, (Vv)c, exceeds a critical value, (VV)K, softens the specimens. Specimens with low values of (Vv)c, have high values of flow stress, as well as higher values of work-hardening coefficient, Calculations based on the experimental results show that the high thickness coatings have relatively lower contribution to the mechanical properties of specimens. The effect of arc sprayed times, which are quantitatively described by the volume fraction of coatings, on the mechanical properties of type 316 steel, have been undertaken in the present work. Al wires were utilized as coatings materials. Tensile tests were carried out in the temperature range of Portevin-Le Chatelier (PLC) effect It has been found that grains at edges and corners of the 316 steel specimens have been dramatically constricted by grit blasting and spraying. Grit blasting has been found to exert a shot-peening effect on the mechanical properties of 316 steel specimens. Coatings with lower values ​​of coating volume fraction enhance the coated specimens in the very similar way as blasting. While if the volume fraction of coating, (Vv) c, exceeds a critical value, (VV) K, softens the specimens. low dimensions of (Vv) c, have high values ​​of flow stress, as well as higher values ​​of work-hardening coefficient, Calculations based on the experimental results show that the high thickness coatings have relatively lower contribution to the mechanical properties of specimens.
其他文献
炎热的夏天,大家纷纷选择躲进空调间,这既浪费电,还有可能得上“空调病”。但是,打开窗户,热辣辣的自然风也让人望而却步。因此我设计研制了微降温纱窗,可以将自然风降温,让室内变得凉爽舒适。  夏天,开窗通风时要加上防蚊虫的纱窗,于是,我就把目标聚集在这一层纱窗上。书上说,水在变成水蒸汽的时候,会带走一部分热量。如果纱窗上时时刻刻都有小水滴,那就能让外界的热风在吹进来的时候,通过水的蒸发被带走一部分热量
在高校艺术教育中,舞蹈是必不可少的一部分,实施舞蹈教育,不仅可以提升学生的艺术水平,还可提升学生的综合素养。但是当前的高校舞蹈教学受到传统观念影响极大,所以教学的有
Many polynuclear Cu(I) compounds have been synthesized, but the problem whether there is direct or no direct Cu-Cu bonding in these compounds is not clear. The
近些年来,采用东风汽车底盘的大型客车,遍布全国各地。但在运行中,常常发现主减速齿轮磨损快、寿命短的情况,而在使用柴油机的大型客车上,这一问题更为突出。现对这一问题的产生
每年一度的五四评优评先如期而至,同学们最盼望的时刻到了。照例评选班上的“星星”:劳动之星、勤奋之星、进步之星、助人之星、好问之星、活动之星……每年都这样,孩子们会
萨克斯管作为传统的西方乐器有着自身独一无二的艺术特色而且蕴藏着感情丰富的艺术表现力。在现代的音乐艺术中有着非常广泛的应用。经过许多年的发展,萨克斯的演奏技巧已经
本文在推导了ZK蜗杆齿面方程的基础上,提出了ZK蜗杆拟准圆柱的新概念,研究了拟准圆柱的横截面半径随加工工艺参数的变化规律,并且通过实验得到了验证。 Based on the derivation of
预测今后20年,石油仍将是主要能源,需求量将从2001年的3.8Gt/a增至2020年的5.75Gt/a。目前世界上116个国家共有732座炼油厂,其中亚太地区2001年有203座炼油厂。 美国依然是
由中国石油抚顺石化分公司主持的 2 0 0 3年催化重整年会于 2 0 0 3年 4月 2 1日至 2 3日在河南洛阳召开。中国石油天然气股份有限公司下属各炼油厂、中国石化股份有限公司下
Magnesium alloy AZ91D was processed respectively in one, two, three and four-component electrolytes by using AC microarc oxidation technique. The corrosion resi