文章信息/Info

Title:

Advanced Manufacturing Technology for Refractory Metals

作者:

劉彩利; 趙永慶; 田廣民; 劉嘯鋒

西北有色金屬研究院，陜西 西安 710016

Author(s):

LIU Caili;  ZHAO Yongqing;  TIAN Guangmin;  LIU Xiaofeng

Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China

關(guān)鍵詞:

難熔金屬材料; 現(xiàn)代燒結(jié); 高純; 近凈成形; 抗氧化

DOI:

10.7502/j.issn.1674-3962.2015.02.09

文獻(xiàn)標(biāo)志碼:

A

摘要:

介紹了現(xiàn)代燒結(jié)技術(shù)（微波燒結(jié)、放電等離子燒結(jié)、選擇性激光燒結(jié)）、先進(jìn)高純材料制備技術(shù)（電子束精煉、區(qū)域熔煉、等離子弧熔煉）、近凈成形技術(shù)（3D打印、金屬注射成形、高能噴涂成形）和抗氧化技術(shù)（涂層、復(fù)合材料等）四類先進(jìn)制備技術(shù)。闡述了基本原理、技術(shù)優(yōu)勢、國內(nèi)外研究現(xiàn)狀及其在難熔金屬材料制備方面的初步應(yīng)用，并指出難熔金屬材料的制備正在向著更高純度、更高抗氧化性能及近終成形方向發(fā)展。最后提出了采用先進(jìn)技術(shù)制備高性能難熔金屬材料亟待解決的一些突出問題：從實驗室走向?qū)嶋H應(yīng)用還需要大量的的試驗和基礎(chǔ)研究數(shù)據(jù)；需要進(jìn)一步提高難熔金屬單晶純度、擴(kuò)大單晶品種和規(guī)格；近凈成形件完全代替?zhèn)鹘y(tǒng)鍛件要先解決內(nèi)部組織和缺陷的控制、綜合力學(xué)性能的調(diào)控等；高溫抗氧化時長需進(jìn)一步提高。

Abstract:

Some modern sintering technologies such as microwave sintering, some advanced high purity technologies such as electron beam melting, some near net shape forming such as 3D printing and some oxidation resistant technologies such as coating were introduced, including the base theory, superiority, research status and primary application in refractory metals. It is the trend to higher purity, higher oxidation resistance and net shaped forming for refractory metals’ manufacturing. Some important questions should be solved at the first for advanced manufacturing technology application in refractory metals. It would need a lot of experiments base status, and need to enhance the single crystal’s purity, variety and size. In order to instead of traditional forged pieces, it is necessary to resolve how to control the internal structure, defect and mechanical property of the near net shape forming products.