Scuffing behavior of 390 aluminum against steel under starved lubrication conditions

被引：34

作者：

Yoon, H ^{[1
]}

Sheiretov, T ^{[1
]}

Cusano, C ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech & Ind Engn, Air Conditioning & Refrigerat Ctr, Urbana, IL USA

来源：

WEAR | 2000年 / 237卷 / 02期

关键词：

scuffing; aluminum; starved lubrication; swashplate compressor;

D O I：

10.1016/S0043-1648(99)00321-X

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The scuffing characteristics of 390-T6 aluminum-silicon alloy sliding against 52100 steel are examined under starved lubrication conditions. The evaluation is based on a shoe-on-disc geometry which simulates the plate/shoe contacts in an automotive air conditioning swashplate compressor. Four shoe geometries (flat shoe, crowned shoe, crowned shoe with a dimple at the center and crowned shoe with a groove) are tested against 390-T6 aluminum discs. All tests are conducted in a high-pressure tribometer (HPT) under R134a (tetrafluoroethane) environment with a base polyalkylene glycol (PAG) lubricant. The effects of degree of lubricant starvation, sliding velocity, geometry of contact, surface topography, and a tin coating on scuffing are evaluated. It is hypothesized that scuffing of 390-T6 Al alloy under starved lubrication conditions is due to macroscopic adhesions leading to plastic shearing of the bulk material. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：163 / 175

页数：13

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