Effect of Boron and Heat Treatment on Mechanical Properties of White Cast Iron for Mining Applicatio

来源 :Journal of Iron and Steel Research(International) | 被引量 : 0次 | 上传用户:sunashelly
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
Heat treatment methods were applied to white cast iron for improving the impact and wear resistance. Additionally, chemical composition optimization was made. Furthermore, the effect of boron addition on such applications was investigated. Samples were investigated by using optical and electron microscope methods. Hardness, wear and impact tests were conducted. The results showed that the secondary carbides in the standard alloy were iron-enriched, needle-like carbides M3C when the boron-added alloy contained Fe23(C,B)6 type, globular secondary carbides. It was concluded that heat treatment B provided higher wear and hardness properties, compared to the standard heat treatment. Optimum mechanical properties were obtained by lower destabilisation temperatures and increasing temperature reduced the wear resistance and hardness. Heat treatment methods were applied to white cast iron for improving the impact and wear resistance. Further, the effect of boron addition on such applications was investigated. Samples were investigated by using optical and electron microscope methods. Hardness , wear and impact tests were conducted. The results showed that the secondary carbides in the standard alloys were iron-enriched, needle-like carbides M3C when the boron-added alloys contained Fe23 (C, B) 6 type, globular secondary carbides. It was sealed that heat treatment B provided higher wear and hardness properties, compared to the standard heat treatment. compared to the standard heat treatment. Optimum mechanical properties were obtained by lower destabilization temperatures and increasing temperature reduced the wear resistance and hardness.
其他文献
高位肠外瘘是腹部手术后较严重的并发症,临床上治疗难度大,病程较长,死亡率高。笔者自1982~1997年采用中西医结合治疗23例,疗效较佳,现报告如下。1临床资料湖南省中医学院第一附属医院(长沙410007)本组
编者寄语整个社会对英语教育事业的持续、高度关注,一方面给英语教育教学带来希望与动力,另一方面英语教师群体面临高强度、快节奏的工作压力。英语课程的性质、目标、标准是
滨海新城——新碶,是北仑区的政治、经济和文化中心。街道围绕“服务”大规模开发建设的目标,确立“以港兴区”的宗旨,经过几年的努力,已形成了机械五金、针织服装、电子电器
在班级管理中,某些看上去正确的行为规范,在具体实施中的效果,往往与规范的制订初衷背道而驰。管理者应努力探索高中生管理工作的科学规律,采用人性化的管理方式,绝不能凭借
2013年1月24日,学者邓正来因胃癌逝世,享年56岁。作为一位知名学者,正来先生英年早逝,在学界引起巨大反响,一时间,泪雨纷飞,唁电齐汇。先生生前一直强调所谓知识共同体、学术
笔者自1994~1998年,运用中西医结合的方法治疗原发性肾病综合征16例,取得较好疗效。现总结如下1 临床资料1.1 一般资料 本组16例均有大量蛋白尿(3.7~4.1g/24h),低蛋白血症(
尿储是产后常遇到的并发症之一,单一疗法效果较差,我科经过临床摸索采用中西医结合治疗产后尿储留120例效果满意。1一般资料我科自1993年1月~1996年1月共接收住院分娩产妇2180人
在现代教学模式中,翻转课堂教学逐渐受到教学者的重视与推崇,而微视频的有效应用,更是对翻转课堂教学产生不可忽视的作用。通过对微视频的特点与制作原则加以分析,阐述微视频
期刊
肝硬化是一种以肝损害为主的慢性全身性疾病,是公认的难治性疾病之一。我们采用中西医结合的方法治疗肝硬化腹水取得较好的疗效,报告如下。1 一般资料1.1 病例选择 本组30
从教十五年来,回顾走过的语文教学之路,可以说是几多欢乐几多辛酸,几许收获几许遗憾。现将我这些年来对语文教学的思考作一个简单的梳理。一、语文课堂应该充满民主、愉悦的