The bearings on the alternator could be going bad. Remove the belt from the alternator then spin the alternator by hand to listen for grinding.
possibly your wheel bearing is on its way out
A few things could be causing a grinding sound when turning. It could be a cv axle, ball joint, tie rod end, or bracket pin steering.
Have your brakes checked, rust or wear on brakes can cause grinding when turning.
not sure sound like it comes from front suspension
scraping sweeking grinding clicking sounds like something is grinding will be most apparent when turning
If you vehicle is front-wheel drive, more than likely, that grinding crunching sound when you turn is coming from the CV joints.
Bad right front wheel bearing.
Bad bearings in an alternator would make a grinding or roaring sound. If a Diode Plate is failing you might hear a buzzing sound in the radio that changes pitch with the speed of the engine.
your brakes are about to give out... you should go to wal-mart and have them replace them
Bad wheel bearings usually cause a grinding noise, and are known to only cause it when turning.
if its a front wheel drive vehicle then it could be the axels
brake shoes or pads are worn and need replacing