EXPLANATION OF THE RELATION BETWEEN PHYSICAL PROPERTIES OF MATERIAL AND EROSION

材料物理性质与侵蚀之间关系的解释

• 批准号: 11650160
• 负责人: TENNICHI Michio
• 金额: $ 1.09万
• 依托单位: KANAZAWA TECHNICAL COLLEGE
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650160/
• 关键词: EROSION; CHARACTERISTICS OF IMPACT ANGLE; CHARACTERISTICS OF IMPACT VELOCITY; EROSION RATE (WEAR RATE); MATERIAL CHARACTERISTICS; HARDNESS; WORK HARDENING EXPONENT; PARTICLE SHAPES; サンド・エロージョン; 潜伏期間; エロージョン速度特性; エロージョン角度特性; リップルパターン; 塑性変形

To study if it is possible to predict erosion rate of material from popular material characteristics such as hardness (mechanical properties) or melting point (physical properties) on erosion in ductile metals, the experiment was conducted at relative low impingement velocities of under 40m/s and at impingement angles of 30°to 90°by angular particles and spherical particles under the existence of air stream. The main results are as follows.(1) It is confirmed that erosion rate W is proportional to a certain exponent n of material characteristics C (the equation is W〜C^n) and that shape of particle has more effects on the relation than impingement condition such as impingement angles or velocities.(2) It found that the mutual relation is more evident when specimen is eroded by angular particles than by spherical particles.As a conclusion, to predict erosion rate of ductile material from popular material characteristics seems to be possible.

为了研究能否从常用的材料特性（如硬度（力学性能）或熔点（物理性能））预测材料的冲蚀速率，在气流存在下，以40 m/s以下的相对较低的撞击速度和30° ~ 90°的撞击角度，对角形颗粒和球形颗粒进行了撞击实验。主要结果如下。(1)结果表明，冲蚀率W与材料特性C的某个指数n成正比（关系式为W <$C^n），颗粒形状对冲蚀率W与材料特性C的关系的影响大于冲击条件（如冲击角度或速度）对冲蚀率W与材料特性C的关系的影响。(2)结果表明，角形颗粒冲蚀试样时，两者之间的相关性比球形颗粒冲蚀试样时更明显，因此，利用常用的材料特性来预测韧性材料的冲蚀率是可行的。

项目成果

天日三知夫、中川多津夫: "球形粒子による延性金属のエロージョン速度特性"先端加工. 18・1. 26-33 (1999)

天美道雄、中川辰雄：“球形颗粒对延展性金属的侵蚀速率特性”《先进加工》18・1（1999）。

TATSUO NAKAGAWA, MICHIO TENNICHI, KOUZOU SUGITA: "RELATION BETWEEN EROSION CHARACTERISTICS AND PHYSICAL PROPERTIES ON DUCTILE METALS"PROCEEDINGS OF JAPAN SOCIETY OF MECHANICAL ENGINEERS. 7. (2000)

TATSUO Nakakawa、Michio TENNICHI、KOUZOU SUGITA：“延性金属的侵蚀特性与物理性能之间的关系”日本机械工程师学会会议录。

天日三知夫,中川多津夫,織田忠幸: "リップルパターンの形成メカニズム"先端加工学会誌. 第19巻1号. 54-60 (2000)

天美道雄、中川龙夫、小田忠之：“波纹图案形成机制”《先进加工学会杂志》第 19 卷，第 1. 54-60 期（2000 年）。